Investigating Powers of the International Tribunal for the Former Yugoslavia vis à vis States and High Government Officials, Amicus-Curiae-Brief Submitted by the Max Planck Institute for Comparative Public Law and International Law to the International Criminal Tribunal for the Former Yugoslavia in the Case of the Prosecutor v. Tihomir Blaskic, en: Max-Planck-Yearbook of United Nations Law 1 (1997) (con Jochen A. Frowein, Karin Oellers-Frahm y Andreas Zimmermann).
Investigating Powers of the International Tribunal for the Former Yugoslavia vis a vis States and High Government Officials, Amicus-Curiae-Brief Submitted by the Max Planck Institute for Comparative Public Law and International Law to the International Criminal Tribunal for the Former Yugoslavia in the Case of the Prosecutor v. Tihomir Blaskic, in: Max-Planck-Yearbook of United Nations Law 1 (1997) (в соавторстве с Йоханом А. Фровейном, Карин Эллерс-Фрам и Андреасом Циммерманном).