1. Perirenal urinary cyst (hydronephrosis) as a result of perforation of kidney pelvis by calculus; attempt to classify extrarenal collections of fluid;Block;Ztschr. f. Urol.,1932
2. Perirenal hydronephrosis: Case report in an infant of seven months;Campbell;Am. J. Surg.,1933
3. Solitary cyst of lower pole of right kidney following abdominal injury;Cattaneo;Boll. e. mem. Soc., piemontese di chir.,1933
4. Perirenal hydronephrosis, its origin and relation to perirenal hematoma;Coenen;Beitr. z. klin. Chir. Tubing,1923
5. Perirenal cysts of hemorrhagic origin: three cases;Hildebrand;Arch. f. klin. Chir.,1924