1. Hirudin as an inhibitor of thrombin;Markwardt,1970
2. Pharmacokinetics and anticoagulant effect of hirudin in man;Markwardt;Thromb. Haemostas.,1984
3. Cyclic amides of Nα-arylsulfonylaminoacylated 4-amidinophenylalanine -tight binding inhibitors of thrombin;Stürzebecher;Thromb. Res.,1983
4. Über die Reinigung von Thrombinprbparaten;Walsmann;Pharmazie,1968
5. Untersuchungen zur Affinitätschromatografie von Hirudin an trägerfixiertem;Walsmann;Thrombin. Pharmazie,1981