1. Die Operative Gallengangsendoskopie;Wildegans,1960
2. An improved rigid choledochoscope;Shore;Am J Surg,1971
3. The technique of biliary tract endoscopy;Schein;Surg Gynecol Obstet,1961
4. Endoscopy of the Bile Ducts (16 mm sound and color film);Schein,1961
5. The hepatic ductal system. A correlation of endoscopic and roentgenographic findings;Schein;Surgery,1962