Aschoff J (1981) Annual rhythms in man. In Biological Rhythms, J Aschoff, ed, Plenum, New York.
2.
Bronson FH (2004) Are humans seasonally photoperiodic?J Biol Rhythms19: 180-192.
3.
Heideman PD, Bruno TA, Singley JW, and Smedley JV (1999) Genetic variation in photoperiodism in Peromyscus leucopus: Geographic variation in an alternative life-history strategy. J Mammal80: 1232-1242.
4.
Kerbeshian MC, Bronson FH, and Bellis ED (1994) Variation in reproductive photoresponsiveness in a wild population of meadow voles. Biol Reprod50: 745-750.
5.
Quetelet AD (1826) Memoire sur les lois de naissances et de la mortalité à Bruxelles. Nouv Mem l’Acad Roy Sci3: 493.
6.
Quetelet AD (1869) Physique Sociale, un Essai sur le Dévelopement des Facultés de l’Homme, J. B. Baière et Fils, Paris.
7.
Roenneberg T and Aschoff J (1990a) Annual rhythm of human reproduction: I. Biology, sociology, or both?J Biol Rhythms5: 195-216.
8.
Roenneberg T and Aschoff J (1990b) Annual rhythm of human reproduction: II. Environmental correlations. J Biol Rhythms5: 217-240.
9.
Roenneberg T, Wirz-Justice A, and Merrow M (2003) Life between clocks—daily temporal patterns of human chronotypes. J Biol Rhythms18: 80-90.
10.
Tan Y, Merrow M, and Roenneberg T (2004) Photoperiodism in Neurospora crassa. J Biol Rhythms19: 135-143.
11.
Villermé P (1831) De la distribution par mois de conceptions. Ann d’Hygiene5: 55-155.