Erlacher, D., Schmid, D., Bischof, F., Hammer, J. and Stumbrys, T. 2020. Ring, ring, ring… Are you dreaming? Combining acoustic stimulation and reality testing for lucid dream induction: A sleep laboratory study. International Journal of Dream Research. 13, 2 (Sep. 2020), 267–273. DOI:https://doi.org/10.11588/ijodr.2020.2.74880.