&quot; The role and coordination of the United Nations and regional organizations in the maintenance of international peace and security &quot; , Institute of Public International Law and International Relations, Thessaloniki (1991), (awaiting publication).
&quot; The role and coordination of the United Nations and regional organizations in the maintenance of international peace and security &quot; , Instituto de Derecho Internacional Público y Relaciones Internacionales, Tesalónica (1991) (a publicarse).