Hayo, Bern, and Gert Pickel. “Eine ökonomische Theorie Der Partnersuche: An Economic Theory of Partner Search”. Journal of Family Research 9, no. 1 (April 1, 1997): p. 72–92. Accessed May 3, 2024. https://ubp.uni-bamberg.de/jfr/index.php/jfr/article/view/549.