@article{Sillero_2008, title={Amphibian mortality levels on Spanish country roads: descriptive and spatial analysis}, volume={29}, ISSN={1568-5381}, url={http://dx.doi.org/10.1163/156853808785112066}, DOI={10.1163/156853808785112066}, number={3}, journal={Amphibia-Reptilia}, publisher={Walter de Gruyter GmbH}, author={Sillero, Neftalí}, year={2008}, pages={337–347} }