1. Unintended pregnancy, contraceptive practice and family planning services in developed countries;Jones;Fam Plann Perspect,1988
2. Abortion in The Netherlands 1989/ 1990; annual commentary on the national abortion register [in Dutch with a summary in English];Rademakers,1992
3. Contraceptive failure in the United States: an update;Trussell;Stud Fam Plann,1990
4. Contraceptive behaviour in The Netherlands in 1989 and 1990; first results of a cohort analysis;van Lunsen,1992
5. Double Dutch; the double message in prevention;van Lunsen;Newslett Eur Soc Contraception,1992