@misc{Crowcroft_P._On_1956, author={Crowcroft, P.}, copyright={Rights Reserved - Restricted Access}, journal={Proceedings of the Zoological Society of London}, address={Londyn}, howpublished={online}, year={1956}, publisher={Wiley-Blackwell}, language={eng}, type={Text}, title={On the life span of the common shrew (Sorex araneus L.)}, keywords={tooth wear, Sorex araneus, Life span}, }