1. Chokroverty S, Provini F. Sleep, breathing and neurological disorders. In: Chokroverty S, editor. Sleep disorders medicine: basic science, technical considerations, and clinical aspects. 4th ed. New York: Springer; 2017.
2. McKenna JT, Zielinski MR, McCarley RW. Neurobiology of REM sleep, NREM sleep homeostasis, and gamma band oscillations. In: Chokroverty S, editor. Sleep disorders medicine: basic science, technical considerations, and clinical aspects. 4th ed. New York: Springer; 2017.
3. Hirshkowitz M, Bhandari H. Neurotransmitters, neurochemistry and the clinical pharmacology of sleep. In: Chokroverty S, editor. Sleep disorders medicine: basic science, technical considerations, and clinical aspects. 4th ed. New York: Springer; 2017.
4. Lu J, Sherman D, Devor M, et al. A putative flip-flop switch for control of REM sleep. Nature. 2006;441:589–94.
5. Luppi PH, Clement O, Sapin E, et al. The neuronal network responsible for paradoxical sleep and its dysfunctions causing narcolepsy and rapid eye movement (REM) behavior disorder. Sleep Med Rev. 2011;15:153–63.