1 Yee, S., ‘Towards an International Law of Co-Progressiveness’, in Yee, S. and Tieya, W. (eds.), International Law in the Post-Cold War World: Essays in Memory of Li Haopei (2001), 18 at 18Google Scholar.

2 Following H. L. A. Hart, The Concept of Law (1994), 94–9 and passim, these two types of rules are usually named ‘primary’ and ‘secondary rules’. However, as there still is some doubt whether the distinction of primary and secondary rules in the way Hart has shaped the terms can be applied to international law, a more neutral terminology seems to be more appropriate.

3 A. Paulus, Die internationale Gemeinschaft im Völkerrecht; Eine Untersuchung zur Entwicklung des Völkerrechts im Zeitalter der Globalisierung (2001), 252–69.

4 Delbrück, J., ‘Prospects for a “World (Internal) Law”? Legal Developments in a Changing International System’, (2002) 9 Ind. JGLS 401Google Scholar, at 414–27, 429–30; Herdegen, M., ‘Asymmetrien in der Staatenwelt und die Herausforderungen des “konstruktiven Völkerrechts”’, (2004) 64 ZaöRV 571Google Scholar, at 579–82; Payandeh, M., ‘The Concept of International Law in the Jurisprudence of H. L. A. Hart’, (2010) 21 EJIL 967CrossRefGoogle Scholar, at 982–8.

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6 In order to avoid misunderstandings it should be noted that the concept of international communitarianism as it is used here is meant to indicate a stream of legal thought that places emphasis on the concept of the international community. As such it is not to be confused with communitarian stances in political philosophy as, for example, championed by M. Walzer, Spheres of Justice: A Defence of Pluralism and Equality (1983) or M. Sandel, Liberalism and the Limits of Justice (1982). In fact, the majority of communitarian philosophers would be rather sceptical about the application of the community paradigm to the international sphere; see M. Payandeh, Internationales Gemeinschaftsrecht: Zur Herausbildung gemeinschaftsrechtlicher Strukturen im Völkerrecht der Globalisierung (2010), 73–5.

7 For recent contributions to the debate see Villalpando, S., ‘The Legal Dimension of the International Community: How Community Interests Are Protected in International Law’, (2010) 21 EJIL 387CrossRefGoogle Scholar; and many of the articles in Fastenrath, U.et al. (eds.), From Bilateralism to Community Interest: Essays in Honour of Judge Bruno Simma (2011)CrossRefGoogle Scholar.

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9 Simma, supra note 5, at 234.

10 C. Tomuschat, ‘Obligations Arising for States without or against Their Will’, (1993/IV) 241 RCADI 195.

11 Ibid., at 240.

12 In a similar vein see Nettesheim, M., ‘Das kommunitäre Völkerrecht’, (2002) 57 JuristenZeitung 569, at 570Google Scholar; Paulus, supra note 3, at 423–5.

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20 Dunoff, J. L., ‘Why Constitutionalism Now? Text, Context and Historical Contingencies of Ideas’, (2004–5) 1 Journal of International Law & International Relations 191, at 198Google Scholar.

21 Ibid.

22 See the two Kammerhof, J. pieces: ‘Law-Making by Scholarship? The Dark Side of 21st Century International Legal “Methodology”’, (2010) 3 Select Proceedings of the European Society of International Law 115Google Scholar; and ‘Constitutionalism and the Myth of Practical Reason: Kelsenian Responses to Methodological Problems’, (2010) 23 LJIL 723 (both articles appeared after the printing of Kleinlein's monograph).

23 See Merkl, A. J., ‘Prolegomena einer Theorie des rechtlichen Stufenbaus’, in Klecatsky, H. R., Marcic, R., and Schambeck, H. (eds.), Die Wiener rechtstheoretische Schule; Ausgewählte Schriften von Hans Kelsen, Adolf Julius Merkl, Alfred Verdross, Vol. II, (2010) 1071, at 1091–1103Google Scholar; for an application to international law see Kammerhofer, J., ‘Hans Kelsen's place in international legal theory’, in Orakhelashvili, A. (ed.), Research Handbook on the Theory and History of International Law (2011), 143 at 148–62Google Scholar.

24 Schwöbel, C. E. J., ‘Organic Global Constitutionalism’, (2010) 23 LJIL 529CrossRefGoogle Scholar, at 539 (this article was only published after Kleinlein's book went into print).

25 Ibid., at 543.

26 Alexy, R., Theory of Constitutional Rights (2002), 44–68Google Scholar; Alexy draws on Dworkin, R., ‘The Model of Rules’, (1967) 35 University of Chicago Law Review 14Google Scholar.

27 See on the judicial aspects of these questions recently von Bogdandy, A. and Venzke, I., ‘In Whose Name? An Investigation of International Courts’ Public Authority and Its Democratic Justification’, (2012) 1 EJIL 7CrossRefGoogle Scholar.

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29 Klabbers, J., ‘Constitutionalism Lite’, (2004) 1 IOLR 31Google Scholar, at 49.

30 I. Kant, Critique of Pure Reason (1781), A 51.

31 W. Friedmann, The Changing Structure of International Law (1964), 60–4 and passim. Friedmann's terminology has been adopted and modified by Abi-Saab, Georges, ‘Cours générale de droit international public’, (1987) 207 RCADI 9Google Scholar; and his ‘Whither the International Community?’, (1998) 9 EJIL 248.

32 See generally Schwarzenberger, G., ‘The Three Types of Law’, (1943) 53 Ethics 89CrossRefGoogle Scholar; with regard to international law G. Schwarzenberger, The Frontiers of International Law (1962), 9–16, 21–36.

33 A. Bleckmann, Allgemeine Staats- und Völkerrechtslehre: Vom Kompetenz zum Kooperationsvölkerrecht (1995).

34 See for an outline and critique of similar approaches B. Simma, Das Reziprozitätselement im Zustandekommen völkerrechtlicher Verträge (1972), 274–308.

35 Cf. Weber, M., ‘Die “Objektivität” sozialwissenschaftlicher und sozialpolitischer Erkenntnis’, in Winckelmann, J. (ed.), Gesammelte Aufsätze zur Wissenschaftslehre (1982), 146 at 190–1Google Scholar.

36 See inter alia Delbrück, supra note 4, at 410–31; Herdegen, M., “Das konstruktive Völkerrecht” und seine Grenzen: die Dynamik des Völkerrechts als Methodenfrage’, in Dupuy, P.-M.et al. (eds.), Völkerrecht als Wertordnung; Festschrift für Christian Tomuschat (2006), 899Google Scholar; U. Hingst, Auswirkungen der Globalisierung auf das Recht der völkerrechtlichen Verträge (2001); Tomuschat, supra note 10.

37 Diggelmann, O. and Altwicker, T., ‘Is There Something Like a Constitution of International Law? A Critical Analysis of the Debate on World Constitutionalism’, (2008) 68 ZaöRV 623Google Scholar, at 631.

38 Kleinlein, T., ‘On Holism, Pluralism, and Democracy: Approaches to Constitutionalism beyond the State’, (2011) 21 EJIL 1075CrossRefGoogle Scholar, at 1083.

39 von Bogdandy, A., Dann, P., and Goldmann, M., ‘Developing the Publicness of Public International Law: Towards a Legal Framework for Global Governance Activities’, (2008) 9 GLJ 1375Google Scholar, at 1376.

40 On that point see the contributions to von Bogdandy, A.et al. (eds.), The Exercise of Public Authority by International Institutions (2010)CrossRefGoogle Scholar; and C. A. Feinäugle, Hoheitsgewalt im Völkerrecht (2011).

41 Constitutional approaches to international law share these features with the global administrative law-approach; cf. on the central ideas of the latter Kingsbury, B., Krisch, N., and Stewart, R. B., ‘The Emergence of Global Administrative Law’, (2005) 68 Law and Contemporary Problems 15Google Scholar; Kingsbury, B. and Krisch, N., ‘Introduction: Global Governance and Global Administrative Law in the International Legal Order’, (2006) 17 EJIL 1Google Scholar.

42 Schwarzenberger, G., ‘International Law and Society’, 1947 YBWA 159Google Scholar, at 160.