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Author/Creator
- National Research Council of Canada8
- National Science Foundation (U.S.)5
- Consiglio nazionale delle ricerche (Italy)3
- Institute of Physics (Great Britain)3
- Jāmiʻat Dimashq3
- Rand Corporation3
- Smithsonian Institution. Office of Public Affairs3
- African Academy of Sciences2
- Deutsche Forschungsgemeinschaft2
- Eesti Teaduste Akadeemia2
- Eesti Teaduste Akadeemia. Eesti Teaduste Akadeemia aastaraamat2
- Inter-American Institute of Agricultural Sciences2
- International Network for Social Network Analysis2
- National Institute of Environmental Health Sciences2
- Richter, Ludwig, 1803-18842
- United States. Air Force. Directorate of Chemical and Atmospheric Sciences2
- United States. Department of Energy. Office of Science2
- Universidad Nacional Mayor de San Marcos. Instituto de Investigaciones Histórico-Sociales2
- Universitas Gadjah Mada2
- Academia Nacional de Ciencias de Bolivia1