KUMAR, G.; SASIDHARAN, A.; KUMAR NAIR, A.; KUTTY, B. M. Efficacy of the combination of cognitive training and acoustic stimulation in eliciting lucid dreams during undisturbed sleep - a pilot study using polysomnography, dream reports and questionnaires. International Journal of Dream Research, [S. l.], v. 11, n. 2, p. 197–202, 2018. DOI: 10.11588/ijodr.2018.2.46417. Disponível em: https://journals.ub.uni-heidelberg.de/index.php/IJoDR/article/view/46417. Acesso em: 5 oct. 2022.