| All organizations |
94 |
91 |
82 |
77 |
112 |
456 |
| India-Indian Institute of Science |
. |
9 |
21 |
6 |
11 |
47 |
| Egypt-Cairo University |
2 |
4 |
1 |
7 |
15 |
29 |
| United States-University of Utah |
8 |
11 |
5 |
1 |
1 |
26 |
| Sweden-Luleå University of Technology |
10 |
5 |
4 |
1 |
4 |
24 |
| Egypt-CENT MET RES & DEV INST |
4 |
. |
4 |
3 |
5 |
16 |
| Spain-Universidad de Granada |
3 |
4 |
4 |
2 |
. |
13 |
| China-Cent S Univ |
. |
. |
3 |
. |
8 |
11 |
| Iran, Islamic Republic of-University of Tehran |
. |
. |
. |
6 |
5 |
11 |
| United States-Columbia University |
3 |
2 |
3 |
2 |
1 |
11 |
| United States-UNIV NEVADA |
3 |
5 |
2 |
1 |
. |
11 |
| United States-University of Florida |
3 |
1 |
2 |
3 |
2 |
11 |
| China-University of Science and Technology Beijing |
. |
. |
2 |
1 |
6 |
9 |
| Saudi Arabia-King Saud University |
3 |
. |
. |
. |
5 |
8 |
| Greece-UNIV IOANNINA |
1 |
4 |
1 |
1 |
. |
7 |
| Russian Federation-Russian Academy of Sciences |
. |
1 |
2 |
. |
4 |
7 |
| China-Chinese Academy of Sciences |
. |
. |
1 |
. |
5 |
6 |
| Egypt-CENT MET R&D INST |
. |
3 |
. |
. |
2 |
5 |
| France-French National Centre for Scientific Research |
2 |
. |
2 |
1 |
. |
5 |
| India-Council of Scientific & Industrial Research |
1 |
2 |
1 |
. |
1 |
5 |
| Japan-Kyushu University |
. |
. |
. |
2 |
3 |
5 |
| United States-S DAKOTA SCH MINES & TECHNOL |
2 |
2 |
1 |
. |
. |
5 |
| Algeria-Univ A Mira |
. |
. |
2 |
2 |
. |
4 |
| Australia-University of New South Wales |
3 |
. |
. |
. |
1 |
4 |
| Brazil-Federal University of Rio de Janeiro |
1 |
. |
2 |
. |
1 |
4 |
| Brazil-UFMG |
1 |
2 |
. |
1 |
. |
4 |
| Canada-University of British Columbia |
1 |
. |
. |
3 |
. |
4 |
| Egypt-CMRDI |
. |
1 |
1 |
1 |
1 |
4 |
| France-ENSG |
2 |
1 |
1 |
. |
. |
4 |
| France-INPL |
1 |
3 |
. |
. |
. |
4 |
| Mexico-UNIV AUTONOMA SAN LUIS POTOSI |
. |
1 |
2 |
. |
1 |
4 |
| Pakistan-BAHAUDDIN ZAKARIYA UNIV |
1 |
. |
. |
3 |
. |
4 |
| United States-University of California, Berkeley |
1 |
1 |
. |
. |
2 |
4 |
| United States-University of Kentucky |
. |
1 |
. |
. |
3 |
4 |
| Australia-University of Western Australia |
2 |
. |
1 |
. |
. |
3 |
| Brazil-UNIV FED OURO PRETO |
. |
. |
. |
1 |
2 |
3 |
| Brazil-Universidade Federal de Minas Gerais |
. |
1 |
. |
. |
2 |
3 |
| Canada-McGill University |
. |
. |
. |
1 |
2 |
3 |
| Canada-University of Alberta |
. |
. |
2 |
. |
1 |
3 |
| China-NORTHEASTERN UNIV |
. |
. |
. |
1 |
2 |
3 |
| Egypt-Cent Met R&D Inst CMRDI |
. |
. |
. |
. |
3 |
3 |
| Egypt-SUEZ CANAL UNIV |
1 |
. |
1 |
. |
1 |
3 |
| France-CTR RECH VALORISAT MINERAIS |
2 |
1 |
. |
. |
. |
3 |
| France-ECOLE NATL SUPER GEOL |
1 |
. |
1 |
1 |
. |
3 |
| India-INDIAN BUR MINES |
1 |
2 |
. |
. |
. |
3 |
| India-TATA RES DEV & DESIGN CTR |
1 |
1 |
1 |
. |
. |
3 |
| Iran, Islamic Republic of-Amirkabir University of Technology |
. |
. |
. |
1 |
2 |
3 |
| Iran, Islamic Republic of-YAZD UNIV |
. |
. |
. |
1 |
2 |
3 |
| Jordan-JORDAN UNIV SCI & TECHNOL |
3 |
. |
. |
. |
. |
3 |
| Poland-Wroclaw Univ Technol |
. |
. |
. |
. |
3 |
3 |
| Turkey-ATATURK UNIV |
. |
. |
1 |
2 |
. |
3 |
| Turkey-INONU UNIV |
. |
. |
3 |
. |
. |
3 |
| United Kingdom-UNIV LONDON BIRKBECK COLL |
. |
. |
2 |
1 |
. |
3 |
| United Kingdom-University College London |
. |
. |
2 |
1 |
. |
3 |
| United States-FLORIDA INST PHOSPHATE RES |
. |
3 |
. |
. |
. |
3 |
| United States-Pennsylvania State University |
. |
. |
3 |
. |
. |
3 |
| Australia-Commonwealth Scientific and Industrial Research Organisation |
2 |
. |
. |
. |
. |
2 |
| Australia-CURTIN UNIV TECHNOL |
2 |
. |
. |
. |
. |
2 |
| Australia-University of Queensland |
. |
. |
. |
1 |
1 |
2 |
| Brazil-CETEM |
. |
. |
2 |
. |
. |
2 |
| Brazil-CVRD |
. |
. |
. |
2 |
. |
2 |
| Brazil-EEUFMG |
. |
1 |
. |
1 |
. |
2 |
| Brazil-FED UNIV MINAS GERAIS |
2 |
. |
. |
. |
. |
2 |
| Brazil-UNIV FED UBERLANDIA |
. |
. |
. |
. |
2 |
2 |
| China-Minist Educ |
. |
. |
. |
. |
2 |
2 |
| China-Nanjing University |
. |
. |
1 |
. |
1 |
2 |
| China-Wuhan Univ Sci & Technol |
. |
. |
1 |
. |
1 |
2 |
| China-WUHAN UNIV TECHNOL |
. |
. |
. |
1 |
1 |
2 |
| Egypt-Cent Met Res & Dev Inst |
. |
. |
1 |
. |
1 |
2 |
| Egypt-Menofeya Univ |
. |
2 |
. |
. |
. |
2 |
| Finland-Geol Survey Finland |
. |
. |
. |
2 |
. |
2 |
| Finland-University of Eastern Finland |
. |
1 |
1 |
. |
. |
2 |
| France-ECOLE NATL SUPER CHIM RENNES |
. |
. |
. |
2 |
. |
2 |
| Germany-BERGAKAD FREIBERG |
2 |
. |
. |
. |
. |
2 |
| Germany-Karlsruhe Institute of Technology |
1 |
. |
. |
1 |
. |
2 |
| India-INDIAN INST TECHNOL |
1 |
. |
. |
1 |
. |
2 |
| India-Madras Ctr |
. |
. |
1 |
. |
1 |
2 |
| India-Reg Res Lab |
1 |
1 |
. |
. |
. |
2 |
| India-REG RES LAB |
. |
. |
2 |
. |
. |
2 |
| India-Tata Consultancy Serv |
. |
. |
. |
. |
2 |
2 |
| India-UNIV BOMBAY |
2 |
. |
. |
. |
. |
2 |
| Iran, Islamic Republic of-Ctr Res & Dev |
. |
. |
. |
. |
2 |
2 |
| Iran, Islamic Republic of-Tarbiat Modares University |
. |
. |
. |
. |
2 |
2 |
| Israel-Ben-Gurion University of the Negev |
2 |
. |
. |
. |
. |
2 |
| Jordan-YARMOUK UNIV |
2 |
. |
. |
. |
. |
2 |
| Mexico-CIMAV |
. |
. |
. |
1 |
1 |
2 |
| Morocco-University of Marrakech Cadi Ayyad |
. |
. |
1 |
. |
1 |
2 |
| Nigeria-FED UNIV TECHNOL OWERRI |
. |
2 |
. |
. |
. |
2 |
| Poland-NICHOLAS COPERNICUS UNIV |
2 |
. |
. |
. |
. |
2 |
| Republic of Serbia-Inst Rudarstvo & Met |
. |
. |
. |
2 |
. |
2 |
| Republic of Serbia-Univ Beogradu |
. |
. |
. |
2 |
. |
2 |
| Saudi Arabia-KING ABDULAZIZ UNIV |
. |
. |
. |
. |
2 |
2 |
| South Africa-MINTEK |
1 |
. |
. |
. |
1 |
2 |
| Sweden-Linköping University |
2 |
. |
. |
. |
. |
2 |
| Turkey-Istanbul Technical University |
2 |
. |
. |
. |
. |
2 |
| Turkey-Middle East Technical University |
2 |
. |
. |
. |
. |
2 |
| United Kingdom-UNIV TEESIDE |
. |
2 |
. |
. |
. |
2 |
| United Kingdom-UNIV TEESSIDE |
. |
1 |
. |
1 |
. |
2 |
| United Kingdom-University of Reading |
. |
. |
2 |
. |
. |
2 |
| United States-West Virginia University |
. |
1 |
. |
1 |
. |
2 |
| Algeria-UNIV ANNABA |
. |
. |
1 |
. |
. |
1 |
| Algeria-UNIV BEJAIA |
. |
. |
1 |
. |
. |
1 |
| Algeria-UNIV BLIDA |
. |
. |
. |
1 |
. |
1 |
| Argentina-CERELA |
. |
. |
. |
1 |
. |
1 |
| Argentina-Comis Nacl Energia Atom |
. |
. |
. |
1 |
. |
1 |
| Argentina-Inst Tecnol Jorge Sabato |
. |
. |
. |
1 |
. |
1 |
| Argentina-Univ Nacl Gen San Martin |
. |
. |
. |
1 |
. |
1 |
| Argentina-Univ Nacl San Juan |
. |
. |
. |
. |
1 |
1 |
| Argentina-UNIV NACL TUCUMAN |
. |
. |
. |
1 |
. |
1 |
| Australia-CSIRO MINERAL PROD |
1 |
. |
. |
. |
. |
1 |
| Australia-Griffith University |
. |
. |
. |
. |
1 |
1 |
| Australia-Newcastle University |
. |
. |
. |
1 |
. |
1 |
| Australia-Univ S Australia |
. |
. |
. |
1 |
. |
1 |
| Australia-University of Melbourne |
. |
1 |
. |
. |
. |
1 |
| Brazil-Brazilian Petr Agcy |
. |
. |
. |
1 |
. |
1 |
| Brazil-Bunge Fertilizantes |
. |
. |
. |
1 |
. |
1 |
| Brazil-CATHOLIC UNIV RIO DE JANEIRO |
. |
. |
1 |
. |
. |
1 |
| Brazil-Catolica Univ Rio de Janeiro |
. |
. |
. |
1 |
. |
1 |
| Brazil-CETEM Ctr Tecnol Mineral |
. |
. |
1 |
. |
. |
1 |
| Brazil-CONSELHO NACL PESQUISAS |
1 |
. |
. |
. |
. |
1 |
| Brazil-Coordenacao Proc Minerais CETEM |
. |
. |
. |
. |
1 |
1 |
| Brazil-Coordinat Mineral Proc CETEM |
. |
. |
. |
. |
1 |
1 |
| Brazil-Ctr Mineral Technol CETEM |
. |
. |
. |
. |
1 |
1 |
| Brazil-Curso Min CEFET MG |
. |
. |
. |
. |
1 |
1 |
| Brazil-FED UNIV SANTA CATARINA |
1 |
. |
. |
. |
. |
1 |
| Brazil-Fertilizantes Serrana SA |
. |
1 |
. |
. |
. |
1 |
| Brazil-FOSFERTIL FERTILIZANTES FOSFATADOS SA |
1 |
. |
. |
. |
. |
1 |
| Brazil-ILHA FUNDAO |
1 |
. |
. |
. |
. |
1 |
| Brazil-Met Catholic Univ |
. |
. |
. |
1 |
. |
1 |
| Brazil-PONTIFICA UNIV CATOLICA |
. |
. |
. |
1 |
. |
1 |
| Brazil-PONTIFICIA UNIV CATOLICA RIO DE JANEIRO |
. |
. |
. |
. |
1 |
1 |
| Brazil-UFOP |
. |
1 |
. |
. |
. |
1 |
| Brazil-UNB |
. |
. |
. |
. |
1 |
1 |
| Brazil-UNIV BRASILIA |
. |
. |
. |
. |
1 |
1 |
| Brazil-Universidade de São Paulo |
. |
. |
1 |
. |
. |
1 |
| Canada-Agrium Inc |
. |
. |
. |
1 |
. |
1 |
| Canada-COMINCO LTD |
. |
1 |
. |
. |
. |
1 |
| Canada-Hatch Ltd |
. |
. |
. |
1 |
. |
1 |
| Chile-UNIV ATACAMA |
. |
1 |
. |
. |
. |
1 |
| China-Bactou Iron & Steel Corp |
. |
1 |
. |
. |
. |
1 |
| China-Baotou Iron & Steel Grp Co Ltd |
. |
. |
. |
1 |
. |
1 |
| China-Beijing Gen Inst Mining & Met |
. |
. |
1 |
. |
. |
1 |
| China-BEIJING GEN RES INST NONFERROUS MET |
. |
1 |
. |
. |
. |
1 |
| China-BEIJING UNIV SCI & TECHNOL |
. |
1 |
. |
. |
. |
1 |
| China-CENTRAL SOUTH UNIVERSITY |
. |
1 |
. |
. |
. |
1 |
| China-CHINA UNIV GEOSCI |
. |
. |
. |
. |
1 |
1 |
| China-CHINA UNIV MINING & TECHNOL |
. |
. |
. |
1 |
. |
1 |
| China-CHINESE ACAD GEOL SCI |
. |
. |
. |
. |
1 |
1 |
| China-City University of Hong Kong |
. |
. |
. |
. |
1 |
1 |
| China-Donghua Univ |
. |
. |
. |
1 |
. |
1 |
| China-E CHINA UNIV SCI & TECHNOL |
. |
. |
. |
. |
1 |
1 |
| China-HEFEI UNIV TECHNOL |
. |
. |
. |
. |
1 |
1 |
| China-Min & Met Co Ltd |
. |
. |
. |
. |
1 |
1 |
| China-MINIST MET IND PR CHINA |
. |
1 |
. |
. |
. |
1 |
| China-Sichuan Lomon Corp |
. |
. |
. |
. |
1 |
1 |
| China-Sichuan University |
. |
. |
. |
. |
1 |
1 |
| China-WUHAN INST TECHNOL |
. |
. |
. |
. |
1 |
1 |
| Colombia-Pontifical Catholic Bolivarian Univ |
. |
. |
. |
1 |
. |
1 |
| Colombia-Univ Pontificia Bolivariana Medellin |
. |
. |
. |
1 |
. |
1 |
| Egypt-Abu Zaabal Fertilizer & Chem Co |
. |
1 |
. |
. |
. |
1 |
| Egypt-Centeral Met Res & Dev Inst |
. |
. |
. |
. |
1 |
1 |
| Egypt-Egyptian Petr Res Inst |
. |
. |
1 |
. |
. |
1 |
| Egypt-FAC SCI |
. |
1 |
. |
. |
. |
1 |
| Egypt-MENOFIA UNIV |
. |
1 |
. |
. |
. |
1 |
| Egypt-MENOUFIA UNIV |
. |
1 |
. |
. |
. |
1 |
| Egypt-NATL RES CTR |
. |
. |
1 |
. |
. |
1 |
| Egypt-Nucl Mat Corp |
. |
1 |
. |
. |
. |
1 |
| Egypt-S Valley Univ |
. |
. |
1 |
. |
. |
1 |
| Egypt-UNIV ASSIUT |
1 |
. |
. |
. |
. |
1 |
| Estonia-TALLINN TECH UNIV |
. |
1 |
. |
. |
. |
1 |
| Finland-Aalto University |
1 |
. |
. |
. |
. |
1 |
| Finland-Lappeenranta University of Technology |
. |
. |
. |
. |
1 |
1 |
| France-CEN CADARACHE |
1 |
. |
. |
. |
. |
1 |
| France-ECOLE MINES ALES |
. |
. |
. |
1 |
. |
1 |
| France-ECPM |
. |
. |
. |
1 |
. |
1 |
| France-INPL ENSG |
. |
1 |
. |
. |
. |
1 |
| France-Res Ctr Arcelormittal |
. |
. |
. |
. |
1 |
1 |
| France-Univ Lorraine |
. |
. |
. |
. |
1 |
1 |
| France-UNIV NANCY 1 |
1 |
. |
. |
. |
. |
1 |
| France-University Claude Bernard Lyon 1 |
1 |
. |
. |
. |
. |
1 |
| France-University of Rennes 1 |
. |
. |
. |
1 |
. |
1 |
| Germany-FREIBERG UNIV MIN & TECHNOL |
. |
1 |
. |
. |
. |
1 |
| Germany-Max Planck Inst |
. |
1 |
. |
. |
. |
1 |
| Germany-TECH UNIV BERGAKAD FREIBERG |
. |
. |
. |
1 |
. |
1 |
| Germany-TECH UNIV CAROLO WILHELMINA BRAUNSCHWEIG |
. |
. |
. |
. |
1 |
1 |
| Germany-Technische Universität Berlin |
. |
. |
. |
1 |
. |
1 |
| Germany-TU BERGAKAD FREIBERG |
. |
1 |
. |
. |
. |
1 |
| Germany-TU CHEMNITZ ZWICKAU |
. |
. |
. |
1 |
. |
1 |
| Germany-Universität Regensburg |
1 |
. |
. |
. |
. |
1 |
| Germany-University of Rostock |
. |
1 |
. |
. |
. |
1 |
| Greece-NATL CTR SCI RES DEMOKRITOS |
. |
. |
. |
1 |
. |
1 |
| India-BANGALORE UNIV |
. |
. |
. |
. |
1 |
1 |
| India-CSIR Madras Complex |
. |
. |
. |
1 |
. |
1 |
| India-Govt Sci Coll Rewa MP |
. |
. |
. |
. |
1 |
1 |
| India-Madras Inst Technol |
. |
. |
. |
1 |
. |
1 |
| India-MS Ramaiah Inst Technol |
. |
. |
. |
. |
1 |
1 |
| India-NMDC |
. |
. |
. |
1 |
. |
1 |
| India-OU |
. |
. |
. |
1 |
. |
1 |
| India-Rajasthan State Met & Min Ltd |
. |
1 |
. |
. |
. |
1 |
| India-TATA STEEL |
. |
. |
. |
. |
1 |
1 |
| India-UTKAL UNIV |
. |
. |
. |
. |
1 |
1 |
| Iran, Islamic Republic of-Gol E Gohar Iron Ore Concentrator |
. |
. |
. |
1 |
. |
1 |
| Iran, Islamic Republic of-Islamic Azad Univ Sci & Res Campus |
. |
. |
. |
1 |
. |
1 |
| Iran, Islamic Republic of-SHAHID BAHONAR UNIV |
. |
. |
. |
. |
1 |
1 |
| Iran, Islamic Republic of-Shahid Bahonar Univ Kerman |
. |
. |
. |
. |
1 |
1 |
| Iran, Islamic Republic of-Shahrood Univ |
. |
. |
. |
1 |
. |
1 |
| Iran, Islamic Republic of-Tehran University of Medical Sciences |
. |
. |
. |
1 |
. |
1 |
| Japan-CENTRAL RESEARCH INSTITUTE OF ELECTRIC POWER INDUSTRY - JAPAN |
. |
1 |
. |
. |
. |
1 |
| Japan-HACHINOHE INST TECHNOL |
. |
. |
. |
. |
1 |
1 |
| Japan-Hokkaido University |
. |
. |
. |
1 |
. |
1 |
| Japan-KYOCERA CORP |
. |
. |
. |
1 |
. |
1 |
| Japan-Kyoto University |
1 |
. |
. |
. |
. |
1 |
| Japan-Osaka Prefecture Univ |
. |
. |
. |
1 |
. |
1 |
| Japan-Osaka University |
. |
. |
. |
1 |
. |
1 |
| Jordan-Al Hussein Bin Talal Univ |
. |
. |
. |
. |
1 |
1 |
| Jordan-Hashemite Univ |
. |
. |
. |
. |
1 |
1 |
| Jordan-JPMC |
1 |
. |
. |
. |
. |
1 |
| Jordan-ROYAL SCI SOC |
. |
. |
. |
. |
1 |
1 |
| Korea, Republic of-Korea Inst Geosci & Mineral Resources |
. |
. |
. |
1 |
. |
1 |
| Mexico-BENEMERITA UNIV AUTONOMA PUEBLA |
. |
. |
. |
. |
1 |
1 |
| Mexico-CTR INVEST MAT AVANZADOS |
. |
. |
. |
. |
1 |
1 |
| Mexico-ESI UAdeC |
. |
. |
. |
. |
1 |
1 |
| Mexico-Fac Ciencias Quim BUAP |
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| Mexico-Mexichem Fluor SA CV |
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| Mexico-UNIV AUTONOMA COAHUILA |
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| Mexico-UNIV IBEROAMER |
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| Mexico-UNIV SONORA |
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| Mexico-Univ Tecnol Mixteca |
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| Morocco-Chouaib Doukkali Univ |
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| Morocco-UNIV MOHAMMED 5 |
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| Netherlands-AGR UNIV WAGENINGEN |
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| Netherlands-WAGENINGEN UNIV AGR |
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| Niger-UNIV ABDOU MOUMOUNI |
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| Nigeria-Fed Univ Technol |
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| Nigeria-UNIV PORT HARCOURT |
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| Pakistan-Bahauddin Univ |
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| Poland-Politech Wroclawskiej |
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| Poland-SILESIAN TECH UNIV |
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| Poland-SILESIAN UNIV |
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| Poland-WROCLAW TECH UNIV |
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| Portugal-LAB INST GEOL & MINEIRO |
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| Portugal-Natl Lab Energy |
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| Portugal-University of Porto |
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| Republic of Serbia-Inst Technol Nucl & Other Mineral Raw Mat |
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| Republic of Serbia-Megatrend Univ |
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| Republic of Serbia-University of Belgrade |
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| Romania-CCMR |
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| Romania-INST POLITECHN BUCURESTI |
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| Romania-INST POLYTECH BUCHAREST |
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| Romania-INTREPRINDEREA ELECTROFAR |
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| Russian Federation-IRKUTSK POLYTECH INST |
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| Russian Federation-Lomonosov Moscow State University |
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| Russian Federation-Open Joint Stock Co Chelabinsk Electromet Combine |
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| Saudi Arabia-Univ Tabuk |
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| Slovak Republic-Slovak Academy of Sciences |
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| Slovak Republic-TECH UNIV KOSICE |
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| South Africa-RAND AFRIKAANS UNIV |
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| South Africa-Stellenbosch University |
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| South Africa-Univ Limpopo |
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| South Africa-University of Cape Town |
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| Spain-UNIV EXTREMADURA |
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| Sri Lanka-UNIV PERADENIYA |
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| Switzerland-ETH Zurich |
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| Switzerland-Swiss Fed Inst Technol |
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| Taiwan-NATL TAIPEI UNIV TECHNOL |
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| Taiwan-NATL TAIWAN UNIV SCI & TECHNOL |
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| Thailand-Chulalongkorn University |
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| Tunisia-FAC SCI TUNIS |
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| Turkey-CUMHURIYET UNIV |
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| Turkey-ITU |
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| Turkey-TECH UNIV ISTANBUL |
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| Turkey-UNIV ISTANBUL |
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| United Kingdom-BRITISH GEOL SURVEY |
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| United Kingdom-TEESSIDE POLYTECH |
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| United States-Alfred University |
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| United States-Aptus |
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| United States-COLGATE PALMOLIVE CO |
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| United States-Florida Dept Environm Protect |
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| United States-Florida Fish & Wildlife Conservat Commiss |
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| United States-FLORIDA INST OCEANOG |
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| United States-Florida Inst Phosphate Res Bartow |
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| United States-Florida Inst Phosphate Res Beneficiat & Min |
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| United States-Georgia Pacific Chem |
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| United States-Independent Inc |
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| United States-Jacobs Engn Grp Inc |
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| United States-Jordan Univ Sci & Technol |
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| United States-MICHIGAN TECHNOL UNIV |
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| United States-Mississippi Univ Women |
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| United States-Montana Tech |
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| United States-MONTANA TECH UNIV |
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| United States-Mosa Fertilizer LLC |
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| United States-Ohio State University |
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| United States-R Squared S Inc |
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| United States-UNILEVER RES |
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| United States-University of California, Irvine |
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| United States-University of Colorado Boulder |
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| United States-University of Illinois at Urbana-Champaign |
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| United States-University of Oklahoma |
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| United States-University of Oregon |
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| United States-University of Pennsylvania |
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| United States-US BUR MINES |
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| United States-US Steel Grp |
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| USSR-DNEPROPETROVSK CHEM ENGN INST |
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| USSR-MOSCOW MIN INST |
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