Roehrs, Timothy; Carskadon, Mary A.; Dement, William C.; Roth, Thomas, Daytime Sleepiness and Alertness, Principles and Practice of Sleep Medicine (Elsevier), 2017: 39–48.e4, ISBN 9780323242882, doi:10.1016/b978-0-323-24288-2.00004-0
Johns, MW. Sensitivity and specificity of the multiple sleep latency test (MSLT), the maintenance of wakefulness test and the epworth sleepiness scale: failure of the MSLT as a gold standard. Journal of Sleep Research. March 2000, 9 (1): 5–11. PMID 10733683. doi:10.1046/j.1365-2869.2000.00177.x.
Johns, MW. Sensitivity and specificity of the multiple sleep latency test (MSLT), the maintenance of wakefulness test and the epworth sleepiness scale: failure of the MSLT as a gold standard. Journal of Sleep Research. March 2000, 9 (1): 5–11. PMID 10733683. doi:10.1046/j.1365-2869.2000.00177.x.