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2. "Amber-trapped creatures show timeless form." Science News, 143:3, 1/16/93

3. Bionews. Genetic Engineering News, 13:17, 10/1/93.

4. "Fort Knox of World Food Supply." Science, Vol 257, 9/92.

5. Marchman, Judy L. "Jurassic Race Park?" The Blood Horse, 12/11/93, p.5750.

6. Rennie, J. "Noah's Freezer" Scientific American, Vol 266, 3/93, p.30.

7. Strobel, Gabrielle. "Seeds in Need: The Vavilov Institute." Science News, 144:25 & 26, 12/18/93, p.416.

8. Winston, R.M. and Handyside, A.H. "New Challenges in Human in Vitro Fertilization." Science, Vol. 260, 14 May 1993, p. 932.