1) Thorsen, S., Glas-Greenwalt, P. and Astrup, T.: Differences in the binding to fibrin of urokinase and tissue plasminogen activator. Thrombos. Diathes. Haemorrh., 28; 95-74, 1972.
2) Camiolo. S. M., Thorsen, S. and Astrup, T.: Fibrinogenolysis and fibrinolysis with tissue plasminogen activator, urokinase, streptokinase-activated human globulin, and plasmin. Proc. Soc. Exp. Biol. Med., 138; 277-280, 1971.
3) Wallen, P.: Chemistry of plasminogen activation. In: Progress in Chemical Fibrinolysis and Thrombolysis Vo. 3, J. F. Davidson, R. M. Rowan, M. Samama and P. C. Desnoyers (Eds.), Raven Press, New York, 1978, pp. 167-181.
4) Takada, A., Urano, T. and Takada, Y.: Influence of coagulation on the activation of plasminogen by streptokinase and urokinase. Thrombos. Haemostas., 42; 901-908, 1979.
5) Takada, A. and Takada, Y.: Effects of ω-aminoacids and clot formation on the activation by urokinase of various plasminogen preparations. Thrombosis. Res., 18; 167-176, 1980.