1. Donat, H. (1979). Stand and Entwicklungstendenzen immunologischer Kontrazeptionsmethoden. Zbl. Gynäkol., 7, 433
2. Matangkasombut, P. (1979). New approaches to immunological contraception. Clin. Obstet. Gynecol., 6, 531
3. Stevens, V. C. (1979). Human chorionic gonadotrophin: properties and potential immunological manipulation for clinical application. Clin. Obstet. Gynecol., 6, 549
4. Talwar, G. P. (1979). Immunology in reproduction. J. Reprod. Med., 22, 61
5. Anderson, D. J. and Alexander, N. J. (1983). A new look at antifertility vaccines. Fertil. Steril., 40, 557