共 10 条
[1]
ALLEN CW, 1955, ASTROPHYSICAL QUANTI, P241
[6]
SANDAGE A, COMMUNICATION
[7]
Sandage A., 1958, ASTROPHYS J, V127, P513, DOI DOI 10.1086/146483
[8]
SHAPLEY H, 1943, GALAXIES, P176
[9]
SHAPLEY H, 1932, HARVARD ANN, V88, P41
[10]
Shapley H., 1938, HARVARD COLL OBSERVA, V908, P1