1. Abdalla, M. I., Ibrahim, I. I. and Osman, M. I. (1979). Effect of Prostaglandin E2 derivative (Sulprostone) on the pituitary ovarian function in non-pregnant females. In Friebel, K., Schneider, A. and Wurfel, H. (eds.) International Sulprostone Symposium, pp. 113–118. Vienna, November, 1978. (Schering AG)
2. Akerlund, M. (1979). Pathophysiology of dysmenorrhea. Acta. Obstet. Gynecol. (Suppl.), 87, 27–35
3. Akerlund, M., Andersson, K. E. and Ingmarsson, I. (1976). Effects of terbutaline on myometrial activity, endometrial blood flow and lower abdominal pain in women with primary dysmenorrhea. Br. J. Obstet. Gynaecol., 83, 673–678
4. Aksel, S., Shromberg, D. W. and Hammond, C. B. (1977). Prostaglandin F2α production by the human ovary. Obstet. Gynecol., 50, 347–350.
5. Beers, W. H., Strickland, S. and Reich, E. (1975). Ovarian Plasminogen activator: Relationships to ovulation and hormonal regulation. Cell, 6, 387–397