TY  - RPRT
TI  - Solar constant - Constraints on possible variations derived from solar diameter measurements
AU  - Sofia, S.
AU  - Okeefe, J.
AU  - Lesh, J. R.
AU  - Endal, A. S.
PY  - 1979
UR  - https://ntrs.nasa.gov/citations/19790055587
ID  - 19790055587
ER  -