共 21 条
[1]
ANDREWS PJ, 1978, IAU3268 CIRC
[4]
ENNIS D, 1977, AP J, V214, P331
[5]
FERLAND GJ, 1979, ASTROPHYS J, V227, P489, DOI 10.1086/156756
[8]
GALLAGHER JS, 1978, ANN REV ASTR AP, V16