共 5 条
- [1] Covington A. E., 1951, J ROY ASTRON SOC CAN, V45, P15
- [2] COVINGTON AE, TABLES DAILY INTENSI
- [3] COVINGTON AE, 1951, J ROY ASTRON SOC CAN, V45, P49
- [4] SOLAR FLARES AND ASSOCIATED 200 MC SEC RADIATION [J]. ASTROPHYSICAL JOURNAL, 1953, 118 (02) : 169 - &
- [5] MCMATH RR, 1939, PUB U MICH OBS, V7, P1