Since March 2015ZFZ Zeiler Rechtsanwälte Vienna: Of Counsel
2008 - 2013Wolf Theiss Rechtsanwälte Vienna: Of Counsel
October 2000 - September 2009University of Vienna, School of Law, Department of International Law and International Relations: Professor of Law
July 1992 – June 2000School of Advanced International Studies, The Johns Hopkins University: Edward B. Burling Professor of International Law and Organization; Director: International Law and Institutions
September 1970 – September 2000University of Salzburg, School of Law, Department of International Law: Professor of Law
May 1967 – September 1968University of Graz, School of Law, Department of International Law: Assistant Professor
December 1966 – April 1967Circuit Court of Vienna for Criminal Matters: Clerk
August – October 1962, August – September 1965International Sugar Council, London: Intern
August – September 1963Creditanstalt Bankverein, Vienna: Intern
1963 – 1966Vienna Students‘ Theatre: Actor and eventually Managing Director

Visiting Professorships

April 2013Hebrew University of Jerusalem
September 1990University of Michigan, School of Law
July / August 1990University of Utah, College of Law
May / June 1990University of Texas, School of Law
October 1981 – January 1982University of Innsbruck, School of Law


September 1972 – May 1973Yale Law School: Graduate Fellow
September 1968 – June 1970University of Cambridge: Graduate Studies in International Law
October 1962 - December 1966University of Vienna: Undergraduate Studies in Law


1979J.S.D. Yale Law School
1976Universitätsdozent (venia legendi) University of Salzburg
1970LL.B. (first class) University of Cambridge, redesignated LL.M. in 1986
1972Diploma in International Law University of Cambridge
1966Dr. iur. (Doctor iuris) University of Vienna

Scholarships and Prizes

1972Ford Foundation Scholarship to study at Yale Law School
1972Theodor Körner Foundation Prize
1969Austrian Ministry of Education Scholarship to study at Cambridge during academic year 1969/70
1969Downing College Prize
1969Cambridge Law School Prize
1969British Institute of International and Comparative Law Prize
1968British Council Scholarship to study at Cambridge during academic year 1968/69

Teaching Activities



University of Vienna, SAIS Johns Hopkins University, Salzburg University, McGeorge School of Law (Salzburg Programs), Innsbruck University, Graz University, University of Texas (Austin), University of Utah (Salt Lake City); Hebrew University of JerusalemGeneral courses on Public International Law, International Organizations, Peaceful Settlement of International Disputes, Law of International Conflicts, International Protection of Human Rights, International Economic Law, European Community Law, International Trade and Development, Advanced Problems of International Law, International Investment Law, International Courts and Tribunals, Investment Arbitration


Member, Editorial Advisory Board, ICSID Review–Foreign Investment Law Journal
Member, Editorial Supervisory Board, The Journal of World Investment and Trade

Managing Editor of the Austrian Journal of Public and International Law (1990-1995)

Advisory and Consultative Editor, Leiden Journal of International Law
Member, Editorial Advisory Board, Legal Issues of Economic Integration
Member, Advisory Board, Yearbook on International Investment Law and Policy

Guest Lectures

Numerous guest lectures in England,Scotland, United States, Netherlands, Germany, Italy, Poland and Israel, including the Hersch Lauterpacht Memorial Lectures, Cambridge in March 1987 and the General Course at the first session of the International Arbitration Academy in Paris in 2011.


Born in Vienna, 13 June 1944