* P. Cicogna, V. Natale, M. Occhionero, and M. Bosinelli, "Slow Wave and REM Sleep Mentation," "Sleep Research Online", vol.
* P. Cicogna, V. Natale, M. Occhionero, and M. Bosinelli, "Slow Wave and REM Sleep Mentation," "Sleep Research Online", vol.