Prof. Dr. Peter Hongler is a Professor of Tax Law at the University of St. Gallen and a Director at the IFF-HSG. He was a guest researcher at the Institute for Austrian and International Tax Law at the Vienna University of Economics and Business, as well as a post-Doctorate Research Fellow at the IBFD in Amsterdam.

• 1: Introduction 2: Sources of the International Law of Taxation 3: Relationship with other Areas of International Law 4: Conceptual Problems

Prof. Dr. Peter Hongler is a Professor of Tax Law at the University of St. Gallen and a Director at the IFF-HSG. He was a guest researcher at the Institute for Austrian and International Tax Law at the Vienna University of Economics and Business, as well as a post-Doctorate Research Fellow at the IBFD in Amsterdam.

• 1: Introduction 2: Sources of the International Law of Taxation 3: Relationship with other Areas of International Law 4: Conceptual Problems

Prof. Dr. Peter Hongler is a Professor of Tax Law at the University of St. Gallen and a Director at the IFF-HSG. He was a guest researcher at the Institute for Austrian and International Tax Law at the Vienna University of Economics and Business, as well as a post-Doctorate Research Fellow at the IBFD in Amsterdam.

• 1: Introduction 2: Sources of the International Law of Taxation 3: Relationship with other Areas of International Law 4: Conceptual Problems