HILL, P. B.; KOPP, J. Theorien der ehelichen Instabilität. Journal of Family Research, [S. l.], v. 2, n. 3, p. p. 211–243, 1990. Disponível em: https://ubp.uni-bamberg.de/jfr/index.php/jfr/article/view/664. Acesso em: 18 apr. 2024.