A Seminar on Air Transport in Asia; Legal and Regulatory Challenges. Colombo, Sri Lanka, 20-24 June 1994 - Air and Space Law View A Seminar on Air Transport in Asia; Legal and Regulatory Challenges. Colombo, Sri Lanka, 20-24 June 1994 by Henri A. Wassenbergh - Air and Space Law A Seminar on Air Transport in Asia; Legal and Regulatory Challenges. Colombo, Sri Lanka, 20-24 June 1994 Henri A. Wassenbergh 19 4/5 Air and Space Law