Agency and Distribution Agreements in Austria International Agency and Distribution Agreements published by Butterworth, 1991
Austrian Immigration and Nationality Laws
Mitautor, International Immigration, Nationality Law published by the Center of International Legal Studies, Salzburg 1993
L’esecuzione delle sentenze Austriache in Italia è delle sentenze Italiane in Austria, 1993
Austrian Conflict of Laws in International Business Transactions in the Comparative Law Yearbook of International Business Center for International Legal Studies, 1994
Handbuch des Werberechts in den EU-Staaten einschließlich Norwegen, Schweiz, Liechtenstein, und USA
Mitautor, Köln 1997
Advertising Law in Europe and North America
Mitautor, 1999