1990

Stief, Christian Georg and Wetterauer, Ulrich and Kulvelis, F. and Popken, G. and Staubesand, J. and Sommerkamp, H. (1990): Intracavernous Drug Delivery System. An Alternative to Intracavernous Injection in the Treatment of Impotence? In: Urologia Internationalis, Vol. 45: pp. 321-325

1989

Stief, Christian Georg and Wetterauer, Ulrich and Sommerkamp, H. (1989): Intra-individual Comparative Study of Dynamic and Pharmacocavernography. In: British journal of urology, Vol. 64: pp. 93-97