共 27 条
[1]
ANTHONYTWAROG BJ, 1977, ASTRON ASTROPHYS, V57, P471
[5]
CIARDULLO RB, 1977, T YALE U OBS, V33
[6]
DDO PHOTOMETRY OF GIANTS IN 4 SOUTHERN OPEN CLUSTERS
[J].
ASTRONOMICAL JOURNAL,
1978, 83 (11)
:1424-1429
[8]
DEMARQUE P, 1977, EVOLUTION GALAXIES S, P199
[9]
DICKENS RJ, 1976, ASTROPHYS J, V207, P506, DOI 10.1086/154518