IFB-TEAM. ifb-Mitteilungen. Journal of Family Research, [S. l.], v. 21, n. 3, p. p. 336–338, 2009. DOI: 10.20377/jfr-218. Disponível em: https://ubp.uni-bamberg.de/jfr/index.php/jfr/article/view/218. Acesso em: 7 may. 2024.