1. Adaptation and standardization of a Spanish version of the Morningness-Eveningness questionnaire: individual differences;Adan;Personality and Individual Differences,1990
2. Temperature and time of day;Blake,1971
3. Differences between morning and evening types in performance;Buela Casal;Personality and Individual Differences,1990
4. Diurnal variation, task characteristic, and vigilance performance;Craig;Human Factors,1987
5. Biological rhythm disorders, depression, and phototherapy. A new hypothesis;Czeisler,1988