1. Heart rate variability in Pagophilus groenlandicus;Casson,1972
2. Changes in heat regulation and circulation in newborn seals on transition to aquatic form of life;Davydov,1964
3. Terrestrial animals in cold: man in polar regions;Edholm,1964
4. Insulative changes in the harp seal during moulting;Frisch;Acta. physiol. scand.,1968
5. Thermal properties of fur;Hammel;Am. J. Physiol.,1955