1. Phytochrome action and its time displays;Borthwick;Am. Nat.,1964
2. Photoperiodism in plants;Borthwick;Science,1960
3. Additional remarks on the role of the endogenous diurnal periodicity in photoperiodism;Bünning,1959
4. Opening address: Biological clocks;Bünning;Cold Spring Harbor Symp. Quant. Biol.,1960
5. Circadian rhythms and time measurement in photoperiodism;Bünning;Cold Spring Harbor Symp. Quant. Biol.,1960