1. Voisin, G. A.: Immunological aspects of infertility, Workshop Nr. 112. 2nd International Congress of Immunology, Brighton 22.–27. July, 1974
2. Amos, D. B.: HL-A fertility and natural section. Karolinska Symposia on Research Methods in Reproductive Endocrinology 7th Symposium Immunological Approaches to Fertility Control, July 29–31, 1974
3. Menge, A. C.: Studies with sp.-1. 9th Meeting of the WHO-Task-Force on Immunological Methods for the Regulation of Fertility Genf, 9.–11. Oct. 1974
4. Kolk, A. H. J., Samuel, T., Rümke, P.: Auto-Antigens of human spermatozoa. I. Solubilisation of a new auto-antigen detected on swollen spermheads. Clin. Exp. Immunol.16, 63–76 (1974)
5. Mettler, L., Gradl, T.: Solubilization of human spermatozoa and antigen isolation responsible for agglutination. Res. exp. Med.165, 169 (1975)