Burkart, Günter. “Kohabitation Und Individualisierung - Nichteheliche Paarbeziehungen Im Kulturellen Wandel: Cohabitation and Individualization - Cultural Change in Quasi-Marital Relationships”. Journal of Family Research 3, no. 3 (December 1, 1991): p. 26–48. Accessed May 6, 2024. https://ubp.uni-bamberg.de/jfr/index.php/jfr/article/view/653.