Proceedings of a symposium held in Prague in August 9-11, 1965, organized by the J. Safarik Univ. and by the Inst. of experimental biology of the Slovak akad. of Sciences
(1966)
Proc. of the Technical Meetings on Biological nitrogen fixation of the Internat. Biological Programme (Section PP-N). Prague and Wageningen, 1970
(1971)
Proceedings of the Symposium on the use of radioisotopes in animal nutrition and physiology, jointry organized by the Interantional Atomic Energy Agency and Food and Agriculture Organization of the United Nations and held in Prague, 23-27 Nov. 1964
(1965)
