PAUL, F.; SCHREDL, M. Male-female ratio in waking-life contacts and dream characters. International Journal of Dream Research, [S. l.], v. 5, n. 2, p. 119–124, 2012. DOI: 10.11588/ijodr.2012.2.9406. Disponível em: https://journals.ub.uni-heidelberg.de/index.php/IJoDR/article/view/9406. Acesso em: 27 jan. 2022.