STUMBRYS, T.; ERLACHER, D.; SCHMIDT, S. Lucid dream mathematics: An explorative online study of arithmetic abilities of dream characters. International Journal of Dream Research, [S. l.], v. 4, n. 1, p. 35–40, 2011. DOI: 10.11588/ijodr.2011.1.9079. Disponível em: https://journals.ub.uni-heidelberg.de/index.php/IJoDR/article/view/9079. Acesso em: 2 jul. 2024.