TY  - RPRT
TI  - A Simple Automatic Short Photoperiod Device.
AU  - V A Greulach
AU  - R Scroggs
AU  - G J Davis
PY  - 1956
DO  - 10.1104/pp.31.6.478
UR  - https://pubmed.ncbi.nlm.nih.gov/16654928/
ID  - 16654928
ER  -