1. 1. R. Vogel, I. Trautschold, and E. Werle (1968 ) Natural Proteinase Inhibitors , p.159 , Academic Press, New York.
2. 2. Proc. 1st Int. Res. Conf. Proteinase Inhibitors (1971 ) (H. Fritz, and H. Tschesche ) p.304 , Walter de Gruyter, Berlin.
3. 3. V. Bayer Symp, H. Fritz, H. Tschesche, L. J. Greene, and E. Truscheit , Proteinase Inhibitors (1974 ) () p.751 , Springer-Verlag, Berlin.
4. 4. Protides of the Biological Fluids (1976 ) (H. Peeters ) p.699 , 23rd edn , Pergamon Press, Oxford.
5. 5. Proteases and Biological Control (1975 ) (E. Reich, D. B. Rifkin, and E. Shaw ) vol. 2 , p.1021 , Cold Spring Harbor Conferences Cell Proliferation, Cold Spring Harbor Laboratories, New York.