Friedrich, R., Panizzi, P., Fuentes-Prior, P., Richter, K., Verhamme, I., Anderson, P. J., Kawabata, S. I., Huber, R., Bode, W., & Bock, P. E. (2003). Staphylocoagulase is a prototype for the mechanism of cofactor-induced zymogen activation. Nature, 425(6957), 535-539.