1. The proteolytic enzymes of Aspergillus oryzae IV. On the inhibition of the enzymes by serum;Bergkvist;Acta chem. scand.,1963
2. Trypsin inhibitors of human serum. I. Standardization, mechanism of reaction, and normal values;Bundy;J. clin. Invest.,1958
3. Proteolytic enzymes and biological inhibitors I. Comparison between the Kunitz method and the agar gel casein precipitating reaction for determination of the activity of some commercial proteolytic enzymes and ininhibitors;Fossum;Acta path. microbiol. scand. Section B,1970
4. Frey , E. K. Kraut , H. Werle , E. Das Kallikrein - Kinin - System und seine Inhibitoren. 2 Aufl. Ferdinand Enke Verlag, Stuttgart 1968 134 137
5. Isolation and characterization of a proteolytic inhibitor from bovine blood;Gray;J. biol. Chem.,1960