Brownlie, Principles of Public International Law, 5th Edition, Oxford 1998;

Buergenthal et al., Grundzüge des Völkerrechts, 2. Auflage, Heidelberg 2000, s. 3–6 in 211–213;

Carreau, Droit international, 5e edition, Pariz, 1997;

Henkin et al., International Law, Cases and Materials, 3rd Edition, West Group 1993, s. 149–240;

Higgins, Problems and Process, Clarendon Press, Oxford 1994, s. 205–218;

Kaučič/Grad, Ustavna ureditev Slovenije, Ljubljana 2000;

The International Law Association, Report of the Sixty-Sixth Conference, Buenos Aires 1994, s. 326–361; The International Law Association, Report of the Sixthy-Seventh Conference, Helsinki, London 1996, s. 570–593.