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Paine SJ, Gander PH, Travier N (February 2006). "The epidemiology of morningness/eveningness: influence of age, gender, ethnicity, and socioeconomic factors in adults (30-49 years)". Journal of Biological Rhythms. 21 (1): 68–76. doi:10.1177/0748730405283154. PMID16461986. S2CID20885196.
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Chung MH, Chang FM, Yang CC, Kuo TB, Hsu N (January 2009). "Sleep quality and morningness-eveningness of shift nurses". Journal of Clinical Nursing. 18 (2): 279–84. doi:10.1111/j.1365-2702.2007.02160.x. PMID19120754.
Baehr EK, Revelle W, Eastman CI (June 2000). "Individual differences in the phase and amplitude of the human circadian temperature rhythm: with an emphasis on morningness-eveningness". Journal of Sleep Research. 9 (2): 117–27. doi:10.1046/j.1365-2869.2000.00196.x. PMID10849238. S2CID6104127.
Mongrain V, Lavoie S, Selmaoui B, Paquet J, Dumont M (June 2004). "Phase relationships between sleep-wake cycle and underlying circadian rhythms in Morningness-Eveningness". Journal of Biological Rhythms. 19 (3): 248–57. doi:10.1177/0748730404264365. PMID15155011. S2CID41561035.
Walker RJ, Kribs ZD, Christopher AN, Shewach OR, Wieth MB (2014). "Age, the Big Five, and time-of-day preference: A mediational model". Personality and Individual Differences. 56: 170–174. doi:10.1016/j.paid.2013.09.003. S2CID18325145.
Taillard J, Philip P, Chastang JF, Bioulac B (February 2004). "Validation of Horne and Ostberg morningness-eveningness questionnaire in a middle-aged population of French workers". Journal of Biological Rhythms. 19 (1): 76–86. doi:10.1177/0748730403259849. PMID14964706. S2CID23248143.
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Paine SJ, Gander PH, Travier N (February 2006). "The epidemiology of morningness/eveningness: influence of age, gender, ethnicity, and socioeconomic factors in adults (30-49 years)". Journal of Biological Rhythms. 21 (1): 68–76. doi:10.1177/0748730405283154. PMID16461986. S2CID20885196.
Baehr EK, Revelle W, Eastman CI (June 2000). "Individual differences in the phase and amplitude of the human circadian temperature rhythm: with an emphasis on morningness-eveningness". Journal of Sleep Research. 9 (2): 117–27. doi:10.1046/j.1365-2869.2000.00196.x. PMID10849238. S2CID6104127.
Mongrain V, Lavoie S, Selmaoui B, Paquet J, Dumont M (June 2004). "Phase relationships between sleep-wake cycle and underlying circadian rhythms in Morningness-Eveningness". Journal of Biological Rhythms. 19 (3): 248–57. doi:10.1177/0748730404264365. PMID15155011. S2CID41561035.