共 17 条
[11]
Orrall F. Q, 1981, SOLAR ACTIVE REGIONS
[13]
SPITZER L, 1962, PHYSICS FULLY IONIZE
[15]
WITHBROE G, 1981, NASA SP450 NAT AER S, P321
[17]
ZIRKER JB, 1977, CORONAL HOLES HIGH S