KELLY, W. E.; MATHE, J. R. Comparison of single- and multiple-item nightmare frequency measures. International Journal of Dream Research, [S. l.], v. 13, n. 2, p. 136–142, 2020. DOI: 10.11588/ijodr.2020.2.64362. Disponível em: https://journals.ub.uni-heidelberg.de/index.php/IJoDR/article/view/64362. Acesso em: 2 oct. 2022.