1. The social behavior of sperm whales;Best,1979
2. Why do women last longer than men?;Collins;New Scientist,1993
3. Adaptability — The Significance of Variability from Molecule to Ecosystem;Conrad,1983
4. On the nature of the function expressive of the law of human mortality;Gompertz;Phil. Trans. R. Soc. London,1825
5. Onset of Puberty;Grumbach,1975