1. Bush RB, Leonhardt H, Bush IV, Landes RR. Dr. Bozzini's Lichtleiter. A translation of his original article (1806). Urology 1974;3:119-23.
2. Hans Christian Jacobaeus: Inventor of human laparoscopy and thoracoscopy;Hatzinger;J Endourol,2006
3. IV.Organoscopy: Cystoscopy of the abdominal cavity;Bernheim;Ann Surg,1911
4. Tamponade of the abdominal cavity with air for sedation life-threatening intestinal bleeding;Kelling;M,252;
5. Litynski GS. Laparoscopy between the world wars: The barriers to trans-atlantic exchange. Spotlighting Heinz Kalk and John C. Ruddock. JSLS 1997;1:185-8.