1. P. S. Tutundžić, Chimia6, 270 (1952).
2. P. S. Tutundžić, I. Doroslovački, andO. Tatić, Analyt. Chim. Acta12, 481 (1955).
3. D. J. Stojkovič, Doc. Chem. Yugoslavica, The First Congress of Pure and Applied Chemistry of the R. P. F. Yugoslavia, Zagreb-Rijeka-Beograd, June 15–21, 1960.
4. M. M. Paunović, Bull. sci., Conseil Acad. R. P. F. Yugoslavia5, 98 (1960).
5. P. S. Tutundžić andD. Stojković, Serbian Chemical Society, The Forth Congress of Chemists of the P. R. of Serbia, Beograd, January 17–21, 1955; Bull. soc. chim. Beograd19, 582 (1954);