1. Adler M (1968) Report on a primary carcinoma of the urethra as contribution to the problem of gynaecologico-urological borderline cases (in German). Zentralbl Gynakol 90:123–124
2. Blaustein A (1982) Pathology of the female genital tract. Springer, Berlin Heidelberg New York
3. Campbell M (1954) Urology. Saunders, Philadelphia
4. De Haan QC (1965) Paraurethral gland adenocarcinoma. Am J Obstet Gynecol 93:903–904
5. Egloff B (1972) Pathological anatomy of the female urethra (in German). In: Lubarsch O, Henke F, Rossle R, Uehlinger E (eds) Handbook of pathological anatomy VII (4) female reproductive organs. Springer, Berlin Heidelberg New York, pp 433–488