1. Temperature effects on insects: relation to periodism;Beck,1962
2. Photoperiodic induction of diapause in an insect;Beck;Biol. Bull mar. biol. Lab., Wood's Hole,1962
3. Physiology and ecology of photoperiodism;Beck;Bull. ent. Soc. Am.,1963
4. Environmental photoperiod and programming of insect development;Beck,1968
5. Photoperiodic Determination of insect development and diapause. I. Oscillators, hourglasses, and a determination model;Beck;J. comp. Physiol.,1974