Aschoff J (1965) Response curves in circadian periodicity. In Circadian Clocks, J Aschoff, ed, pp 95-111, North-Holland, Amsterdam, the Netherlands.
4.
Aschoff J (1969) Phasenlage der Tagesperiodik in Abhängigkeit von Jahreszeit und Breitengrad. Oecologia 3:125-165.
5.
Aschoff J, Gerecke E, Kureck A, Pohl H, Rieger P, Von SaintPaul U, and Wever R (1971) Interdependent parameters of circadian activity rhythm in birds and man. In Biochronometry, M Menaker, ed, pp 3-29, Nat. Acad. Sciences, Washington D.C.
6.
Aschoff J and Wever R (1962) Beginn und Ende der täglichen Aktivität freilebender Vögel. Journal für Ornithologie 103:2-27.
7.
Beersma DGM, Daan S, and Hut RA (1999) Accuracy of natural entrainment under fluctuating light conditions: Contributions of phase and period responses. Journal of Biological Rhythms14:320-329.
8.
Burchard JE (1958) “Resetting” a biological clock. M. Sc. thesis, Princeton University, 1-66.
9.
Daan S (1977) Tonic and phasic effects of light in the entrainment of circadian rhythms. Ann N YAcad Sci290:51-59.
10.
Daan S (2000) Jürgen Aschoff 1913-1998: A life of duty, wit and vision. In Sapporo Symposium on Biological Clocks, T. Hiroshige, K Honma and S Honma, eds, Hokkaido University Press, Sapporo.
11.
Daan S and Aschoff J (1975) Circadian rhythms of locomotor activity in captive birds and mammals: Their variations with season and latitude. Oecologia18:269-316.
12.
Daan S and Pittendrigh CS (1976) A functional analysis of circadian pacemakers in nocturnal rodents III, Heavy water and constant light: Homeostasis of frequency?Journal Comparative Physiology106:267-290.
13.
DeCoursey PJ (1960a) Daily light sensitivity rhythm in a rodent. Science131:33-35.
14.
DeCoursey PJ (1960b) Phase control of activity in a rodent. Cold Spring Harbor Symposia on Quantitative Biology25:49-55.
15.
DeCoursey PJ (1989) Photoentrainment of circadian rhythms: An ecologist's viewpoint. In Circadian Clocks and Ecology, T Hiroshige and K Honma, eds, pp 187-206, Hokkaido University Press, Sapporo.
16.
Elliott J (1981) Circadian rhythms, entrainment and photoperiodism in the Syrian hamster. In Biological Clocks in Seasonal Reproductive Cycles,BK Follett and DE Follett, eds, pp 203-217, Wright, Bristol.
17.
Gerkema M, Daan S, Wilbrink M, Hop M, and Van der Leest F (1993) Phase control of ultradian and circadian rhythms in the common vole (Microtus arvalis): The roles of light and the circadian system. Journal of Biological Rhythms8:151-171.
18.
Hastings JW and Sweeney BM (1958) A persistent diurnal rhythm of luminescence in Gonyaulax polyedra. Biological Bulletin115:440-450.
19.
Hut RA and Scharff A (1998) Endoscopic observations on tunnel blocking behaviour in the European ground squirrel (Spermophilus citellus). Zeitschrift für Säugetierkunde 377-380.
20.
Hut RA, Scheper A, and Daan S (2000) Can the circadian system of a diurnal and a nocturnal rodent entrain to ultraviolet light?J. Comp. Physiol. A (in press).
21.
Hut RA, Van Oort BEH, and Daan S (1999) Natural entrainment without dawn and dusk: The case of the European ground squirrel. Journal of Biological Rhythms14:290-299.
22.
Johnson CH (1995) Phase response curves: What can they tell us about circadian clocks? In Fourth Sapporo Symposium on Biological Rhythms, T Hiroshige and K Honma, eds, pp 2-48, Hokkaido Universal Press, Sapporo.
23.
Kramm KR and Kramm DA (1980) Photoperiodic control of circadian activity rhythms in diurnal rodents. International Journal of Biometeorology24:65-76.
24.
Merton R (1965) On the Shoulders of Giants: A Shandean Postscript, Free Press, New York.
25.
Page TL, Wassmer GT, Folkard S, and Block GD (1997) Aftereffects of entrainment on the period of the pacemaker in the eye of the mollusk Bulla gouldiana. Journal of Biological Rhythms12:218-225.
26.
Pittendrigh CS (1950) The ecotopic specialisation of Anopheles homunculus: And its relation to competition with A. bellator. Evolution4:64-78.
27.
Pittendrigh CS (1958) Perspectives in the study of biological clocks. In Perspectives in Marine Biology,AA Buzati-Traverso, ed, pp 239-268, University of California Press, Berkeley.
Pittendrigh CS (1981b) Circadian organization and the photoperiodic phenomena. In Biological Clocks in Seasonal Reproductive Cycles, Follett BK and Follett DE, eds, pp 1-35, Wright, Bristol.
30.
Pittendrigh CS and Daan S (1976a) A functional analysis of circadian pacemakers in nocturnal rodents I. The stability and lability of spontaneous frequency. Journal of Comparative Physiology106:223-252.
31.
Pittendrigh CS and Daan S (1976b) A functional analysis of circadian pacemakers in nocturnal rodents IV, Entrainment: Pacemaker as clock. Journal of Comparative Physiology106:291-331.
32.
Pohl H (1982) Characteristics and variability in entrainment of circadian rhythms to light in diurnal rodents. In Vertebrate Circadian Systems, J Aschoff, S Daan, and G Groos, eds, pp 239-246, Springer, Berlin-Heidelberg.
33.
Savides T, Messin S, Senger C, and Kripke D (1986) Natural light exposure in young adults. Physiology and Behaviour38:571-574.
34.
Wever RA (1966) Ein mathematisches Modell für die circadiane Periodik. Zeitschrift für angewandte Mathematik und Mechanik Sonderheft 46:148-157.