共 15 条
[1]
ARP H, 1968, GALACTIC STRUCTURE S, V5, P401
[2]
CUFFEY JC, 1943, ASTROPHYS J, V98, P49
[4]
KUKARKIN BV, 1973, VARIABLE STARS GLOBU, P8
[5]
MANNINO G, 1963, 12 BOL PUBL, V8
[7]
PURGATHOFER A, 1966, MITT U STERNWARTE WI, V13