国际私法
Ph.D. in Law, University of Münster (Germany), 1983. Ph.D. in Philosophy and History, University of Münster (Germany), 1988. Ll. M., Master in Law, Harvard University (USA), 1990. J.D., Law Degree, University of Navarra (Spain), 1981. Business and Economics Degree, IESE Business School, Madrid, 2002.