1. The surgical technic of abdominal operations;Spivack,1946
2. Modern concepts of intraperitoneal drainage;Lazarus;Surg Gynecol Obstet,1954
3. Cholecystectomy and the Penrose;Carpenter;Bull Mount Carmel Mercy Hosp,1968
4. Die erkrankungen der gallenwege und der pankreas;Hess,1961
5. Management of surgical complications;Artz,1975