A. R. Blaustein, P. D. Hoffman, D. G. Hokit, J. M. Kiesecker, S. C. Walls, J. B. Hays,
UV Repair and Resistance to Solar UV-B in Amphibian Eggs: A Link to Population Declines? Proceedings of the National Academy of Sciences of the United States of America. ,vol. 91, pp. 1791- 1795 ,(1994) ,
10.1073/PNAS.91.5.1791