Autor
Food and Agriculture Organization of the United Nations
4
International Atomic Energy Agency
4
All-Union Scientific and Technical Conference on the application of Radiocative Isotopes Moscow, R.S.F.S.R.
1
International Symposium on Nuclear and Related Techniques in Soil-Plant Studies on Sustainable Agriculture and Environmental Preservation Vienna, Austria
1
Joint Commission on Applied Radioactivity
1
Lenin, Vladimir Ilich, 1870-1924
1
Symposium on the Use of Isotopes and Radiation in Research on Soil-Plant Relationships Including Applications in Forestry, Vienna
1
Symposium on the Use of Isotopes in Plant Nutrition and Physiology Vienna, Austria
1
Symposium on the Use of Isotopes in Studies of Nitrogen Metabolism in the Soil-Plant-Animal System Vienna
1