共 12 条
[1]
BAADE W, 1958, IAU S, V5, P1
[5]
MILLS BY, PARIS S RADIO ASTRON
[6]
MINKOWSKI R, 1957, IAU S, V4, P107
[8]
OORT JH, 1956, B ASTRON I NETH, V12, P285
[9]
OSTERBROCK DE, 1957, YB CARNEGIE I WASHIN, P59
[10]
Sandage A., 1958, ASTROPHYS J, V127, P513, DOI DOI 10.1086/146483