Author
United States. Department of State
77
United States,
70
United States. Department of State,
68
Canada,
16
Canada
14
France,
14
France
12
United States
11
Luxembourg,
6
SpringerLink (Online service)
6
Belgium,
5
Congo (Democratic Republic)
5
ProQuest (Firm)
5
ScienceDirect (Online service)
5
Senegal,
4
Congo (Democratic Republic),
3
Denmark,
3
Gabon,
3
Germany,
3
Greece,
3
Iceland,
3
Italy,
3
Luxembourg
3
Mali,
3
Morocco
3
Morocco,
3
Aubert, Huguette
2
Belgium
2
Benin,
2
Burundi
2
Chad
2
Cockle, Anya
2
Comoros
2
Comoros,
2
Côte d'Ivoire,
2
Djibouti
2
Gabon
2
Merino-Rodríguez, Manuel,
2
Mexico,
2
Meyer, Christian
2
Monaco
2
O.R.S.T.O.M. (Agency : France)
2
Terrasson, Daniel
2
Togo
2
Uilenberg, G.
2
United States. Social Security Administration
2
Agrawal, Kim,
1
Algeria
1
Algeria,
1
Associazione italiana di ingegneria chimica
1
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