JAKUB HANDRLICA CYIL 7 ȍ2016Ȏ International Meteorological Organization in 1873, General Postal Union in 1874, International Commission for Air Navigation in 1903) and the powers delegated to them by sovereign states. In particular, the studies by Wilhelm Kaufmann, 32 Pierre Kazansky , 33 Paul Reinsch 34 and Francis Sayre 35 are to be mentioned. Karl Neumeyer also made reference to the existence of the decision making powers of international administrative unions in the 4 th volume of his study. 36 However, it is a matter of fact that delegations of decision making powers to international administrative unions used to be rather rare in this period. 37 On the other hand, we may find a growing number of such delegations in multilateral international agreements signed after the 2 nd World War. 38 Most recently, scholars belonging to the school of “global administrative law” ( Sabino Cassese, 39 Stefano Battini, 40 Lorenzo Casini 41 ) use to distinguish 42 the following platforms of transterritorial decision making by international administrative unions: (a) international multilateral organisations (European Atomic Energy Community, International Atomic Energy Agency, International Energy Agency), (b) supra-national networks of administrative co- operation (e.g. the Western European Nuclear Regulator Association), (c) hybrid unions of mixed public and private nature (the Internet Assigned Numbers Authority, Codex Alimentarius Commission, International Association of Insurance Supervisors etc.), (d) unions of private nature being active in the field of international administration (International Organisation for Standardization, World Anti-Doping 32 KAUFMANN, W. Les unions internationales, Recueil des Cours de ľ Académie de Droit International, 1924, pp. 177 et seq. 33 KAZANSKY, P. Théorie de l’administration internationale , Revue générale de droit international public, 1902, pp. 353 et seq. 34 REINSCH, P. Public International Unions: Their Work and Organization; a Study in International Administrative Law , Ginn and Company, Boston, 1911. 35 SAYRE, F. Experiments in International Administration, Harper & Brothers, New York, 1919. 36 NEUMEYER, K. Internationales Verwaltungsrecht, Vierter Band: Allgemeiner Teil, Verlag für Recht und Gesellschaft AG, Zurich, 1936, at pp. 299 et seq. 37 In this respect, powers delegated to various river commissions ( Ľ Administration générale de ľ octroi de navigation du Rhin established in 1815, Commission Européenne du Danube established in 1856, International Danube Commission established in 1921, International Commission of the Elbe established in 1922 etc.) did represent a rather salient exemption. 38 WOLFRUM, R. International Administrative Unions , in: Bernhardt, R. (ed . ) Encyclopedia of Public International Law , North-Holland, Amsterdam, 1995, pp. 1048 et seq . 39 Sabino Cassese (1935), Ordinary Professor of Administrative Law (1961), Judge of the Italian Constitutional Court (2005–2014), Founder of the Institute for Research on Public Administration. 40 Stefano Battini (1966), Ordinary Professor of Administrative Law (2008), Fellow of the Institute for Research on Public Administration. 41 Lorenzo Casini (1976), Ordinary Professor of Administrative Law (2012), Fellow of the Institute for Research on Public Administration. 42 CASSESE, S. Is there a Global Administrative Law? , in: Bogdandy, A., Wolfrum, R., Bernstorff, J. (eds.) The Exercise of Public Authority by International Institutions , Springer Verlag, Heidelberg, 2009, pp. 33 et seq.