TY  - RPRT
TI  - Soviet short-term forecasts of active region evolution and flare activity
AU  - Severny, A. B.
AU  - Stepanyan, N. N.
AU  - Steshenko, N. V.
PY  - 1979
UR  - https://ntrs.nasa.gov/citations/19800010195
ID  - 19800010195
ER  -