1. L’extraction des gros calculs du rein; pyélotomie postérieure étendue pelvi-caliculaire;Surraco;J. d’urol.,1939
2. Some observations on removal of kidney stones particularly by means of pyelolithotomy in situ;Hellström;Acta Chir. Scand.,1949
3. Treatment of Urinary Lithiasis;Butt,1960
4. A new technique of approach of the intrarenal pelvis and the large calices;Aboulker;J. Urol. Med. Chir.,1960
5. New surgical concepts in removing renal calculi;Gil Vernet;Urol. Int.,1965