1. Adler: Reunion libre des chir de Berline, 13 Juillet, 1891.Compte rendu in Dent. med. Zeitung., 60:690, 1891.
2. Bailey’s Textbook of Histology. P. E. Smith Ed., 10th Ed., pp 495. Williams & Wilkins, Baltimore, 1940.
3. Bodnar, L.: Cholecystitis Cystica.Virchow’s Archiv., 238:359 1922.
4. Kaufmann, Edw.:Pathology, Vol. 2, pp. 979, 1929. P. Blakiston’s Son & Co.
5. Martinotti, G.: Transformazioncistica della parete della cistfellea; radiologicamente diagnosticata.Ann. di radiol. e fis. Med., 8:295, 1934.