3. Nevinsky, G. A., Kanyshkova, T. G., Vlassov, A. V., Semenov, D. V., Vlassov, A. V., Gal’vita, A. V., and Buneva, V. N.: Secretory immunoglobulin A from healthy human mother’s milk catalyzes nuclei acid hydrolysis. Appl. Biochem. Biotechnol., 83, 115–130 (2000).