@misc{seifert_covalent_immobilization_1997, 
author={Seifert, B.,Groth, T.,Romaniuk, P.},
title={Covalent immobilization of hirudin improves the haemocompatibility of polyactide-polyglycolide in vitro},
year={1997},
howpublished = {journal article},
note = {Online available at: \url{} (DOI). Seifert, B.; Groth, T.; Romaniuk, P.: Covalent immobilization of hirudin improves the haemocompatibility of polyactide-polyglycolide in vitro. Biomaterials. 1997. vol. 18, 1495-1502.}}