共 26 条
[2]
Blaauw A, 1952, Bull. Astron. Inst. Neth., V11, P459
[3]
Blanco V. M., 1968, PUBL US NAVAL OBS, P21
[4]
CHEVALIER RA, 1974, ASTROPHYS J, V188, P501, DOI 10.1086/152740
[7]
DELHAYE J, 1965, GALACTIC STRUCTURE
[8]
HABING HJ, 1969, B ASTRON I NETH, V20, P177
[9]
HEILES C, IN PRESS
[10]
HERBIG GH, 1968, Z ASTROPHYS, V68, P243