共 30 条
[12]
2-PHASE MODELS OF QUASAR EMISSION-LINE REGIONS
[J].
ASTROPHYSICAL JOURNAL,
1981, 249 (02)
:422-442
[13]
MAEDER A, 1981, ASTRON ASTROPHYS, V102, P401
[19]
OSTERBROCK DE, 1974, ASTROPHYSICS GASEOUS, P41
[20]
OSTRIKER JP, 1983, 51 PRINC OBS PREPR