Arizona State University

Professor, Faculty of Law, National University of Singapore

University of Zagreb Faculty of Transport and Traffic Sciences

Professor of Air and Space Law, Leiden University

Associate Professor, The Chinese University of Hong Kong

Air and Space Law Studies, Universitas Prasetiya Mulya

Postdoctoral scholar, University of Lapland

Asst. Professor, Faculty of Law, TU

research fellow, Institute of Air and Space Law, Lazarski University in Warsaw