1. Deschamps: Encycl. sc. med. 1791.
2. Primary bladder tumors of the first decade of life;Deming;Surg. Gynec. & Obst.,1924
3. Primary osteogenic sarcoma of the bladder;Crane;Ann. Surg.,1943
4. Tumor disembrioplastico de vejiga;Arrues;Chondrosarcoma. Rev. argent. de urol.,1946
5. Osteogenic leiomyosarcoma of the bladder;Jones;Brit. J. Surg.,1950