Derecho Internacional Público – dipublico.org Cátedra I de Derecho Internacional Público de la Facultad de Derecho y Ciencias Políticas de la Universidad Católica de La Plata – Argentina
26 March 1968 - Opening of the Conference on the Law of Treaties, Hofburg Palace, Vienna, Austria: Professor Roberto Ago (Italy), addressing the delegates following his unanimous election as President of the Conference (centre); Mr. C.A. Stavropoulos, Representative of the Secretary-General (left); and Mr. A.P. Movchan, Executive Secretary (right).