@misc{indiciaea09631f0a8d5, title = {Abrupt decrease in daylength and short-term changes in the plasma concentrations of FSH, LH and prolactin in anoestrous ewes.}, author = {J S Walton and J D Evins and B P Fitzgerald and F J Cunningham}, year = {1980}, doi = {10.1530/jrf.0.0590163}, url = {https://pubmed.ncbi.nlm.nih.gov/6772777/}, note = {Source identifier: 6772777} }