1. Bonfanti G, Bozzetti F, Doci R, et al. Results of extended surgery for cancer of the rectum and sigmoid. Br J Surg 1982;69:305–7.
2. Gall FP, Tonak J, Altendorf A, Kuruz U. Operative approach and results in colorectal carcinomas with invasion of adjacent structures. Langenbecks Arch Chir 1985;366:445–50.
3. Goligher JC. Surgery of the anus, rectum, and colon. 4th ed. London, Bailliere Tindall, 1984.
4. Jensen H-E, Balslev I, Nielsen J. Extensive surgery in treatment of carcinoma of the colon. Acta Chir Scand 1970;136:431–4.
5. Tonak J, Gall FP, Hohenberger W, Hermanek P. Prinzipien der Chirurgie maligner Tumoren: Primätumor und LymphabfluBgebiete. In: Gall FP, Hermanek P, Tonak J, eds. Chirurgische Onkologie. New York: Springer-Verlag, 1985.