11 Colo. J. Int'l Envtl. L. & Pol'y 220 (2000) / Colorado Journal of International Environmental Law and Policy, Vol. 11, 1999 Yearbook (2000), pp. 220-229
Proceedings of the National Academy of Sciences of the United States of America. 07/20/99, Vol. 96 Issue 15, p8483. 6p. 3 Color Photographs, 1 Diagram.