TY  - RPRT
TI  - On Possible Changes in the Solar "Constant".
AU  - T E Sterne
AU  - K F Guthe
AU  - W O Roberts
PY  - 1940
DO  - 10.1073/pnas.26.6.399
UR  - https://pubmed.ncbi.nlm.nih.gov/16588369/
ID  - 16588369
ER  -