@misc{kakuschke_metal_concentration_2007, 
author={Kakuschke, A., Griesel, S., Siebert, U., Prange, A.},
title={Metal concentration in blood in harbour seal pups (Phoca vitulina) of the German North Sea},
year={2007},
howpublished = {conference poster: San Sebastian (E);},
note = {Kakuschke, A.; Griesel, S.; Siebert, U.; Prange, A.: Metal concentration in blood in harbour seal pups (Phoca vitulina) of the German North Sea. In: European Cetacean Society, 21th Annual Conference. San Sebastian (E). 2007.}}