1. Babcock: Quoted by Goligher, J. C. and E. S. R. Hughes: Sensibility of the rectum and colon: Its role in the mechanism of anal continence. Lancet.1: 543, 1951.
2. Bacon, H. E., S. T. Ross and P. M. Recio: Proctology. Philadelphia, J B. Lippincott Company, 1956, p. 305.
3. Black, B. M.: Combined abdomino-endorectal resection: A surgical procedure preserving continuity of the bowel, for the management of certain types of carcinoma of the midrectum and upper part of the rectum. Proc. Staff Meet., Mayo Clin.23: 545, 1948.
4. Hochenegg: Quoted by Black, B. M.: Combined abdomino-endorectal resection: Technical aspects and indications. A.M.A. Arch. Surg.65: 406, 1952.
5. Kraske, P.: Zur exstirpation hochsitzendes Mastdarmkrebses. Verhandl. deutsch. Geselsch. Chir.29: 31, 1900.