Max Elstein, Brian Daunter. 'Trace elements in cervical mucas', Cervical Mucas in Human Reproduction, Based on a colloquium held in Geneva on 18-20 September 1972 within the WHO expanded programme of research development, and research training in human reproduction. Edited by M. Elstein, K.S. Moghissi, R. Borth. (Copenhagen: Scriptor 1973).