Preliminary Program: AAAS✰91, The AAAS Annual Meeting, Washington, DC, 14-19 February 1991
- 26 October 1990
- journal article
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 250 (4980), 1-15
- https://doi.org/10.1126/science.250.4980.1