1. Dietz, K., Hadeler, K.P., Epidemiological models for sexually transmitted diseases. J.Math.Biol. 26, 1–25 (1988)
2. Dowse, H.B., Ringo, J.M., Barton, K.M., A model describing the kinetics of mating in Drosophila, J. Theor. Biol. 121, 173–183 (1986)
3. Hadeler, K.P., Waldstätter, R., Wörz-Busekros, A., Models for pair formation. In: Conference Report, Deutsch-Französisches Treffen über Evolutionsgleichungen, Blaubeuren, 3.-9. Mai 1987, Semesterbericht Funktionalanalysis Tübingen 1987, p.31–40.
4. Hadeler, K.P., Waldstätter, R., Wörz-Busekros, A., Models for pair formation in bisexual populations. J. Math. Biol. submitted
5. Hirsch, M.W., Systems of differential equations which are competitive or cooperative I. Limit sets. SIAM J. Math. Anal. 13, 167–179(1982)