@article{Cort_s_1998, title={Changes in otter Lutra lutra distribution in Central Spain in the 1964–1995 period}, volume={86}, ISSN={0006-3207}, url={http://dx.doi.org/10.1016/S0006-3207(98)00009-3}, DOI={10.1016/s0006-3207(98)00009-3}, number={2}, journal={Biological Conservation}, publisher={Elsevier BV}, author={Cortés, Y and Fernández-Salvador, R and Garcı́a, F.J and Virgós, E and Llorente, M}, year={1998}, month=Nov, pages={179–183} }