1. ^siolkovskiy, K. E., Collected Works, NASA TTF-236-238, Washington, DC, 1965 (translated from Russian).
2. 3Miquel, J., and Souza, K. A. "Reproduction, Development, andAging,"Advances inSpaceBiology andMedicine, edited by S. L. Bonting, JAI Press Inc., Greenwich, CT, and London, Vol.1, 1991, pp.71-97.