Investigating powers of the International Criminal Tribunal for 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 - Frowein, Jochen Abr.; Zimmermann, Andreas (Max Planck yearbook of United Nations law, 1998)