Seber J. F., Toomey T. P., Powell J. T., Brew K. & Awad W. M., janvier 1976 — Proteolytic enzymes of the K-1 strain of Streptomyces griseus obtained from a commercial preparation (Pronase). Purification and characterization of the carboxypeptidase. The Journal of Biological Chemistry vol. 251, n° 1, p. 204-208