Faculty Law, University of Belgrade, 1954. Doctor in law, University of Belgrade, 1965.
Foreign political commentator, editor, Borba, 1947-1951; chief editor and director, Review of International Affairs, Belgrade, since 1953; professor political science, University Zagreb, 1978-1991. Member editorial boards of periodicals.
Active Forum for International Relations, Belgrade. Member Yugoslav Association for International Law (president).
Married Ljubica Medic, December 14, 1949. Children: Petkovic, Branko, Maja.