Véase, entre otros, I. Seidl-Hohenveldern, “Failure of Control in the Sixth International Tin Agreement”, en Niels Blokker and Sam Muller, Towards More Effective Supervision by International Organizations - Essays in Honour of Henry G. Schermers. vol.
انظر في جملة أمور: I. Seidl-Hohenveldern, Failure of Control in the Sixth International Tin Agreement, in Niels Blokker & Sam Muller, TOWARDS MORE EFFECTIVE SUPERVISION BY INTERNATIONAL ORGANIZATIONS - ESSAYS IN HONOUR OF HENRY G. SCHERMERS, Vol.