共 22 条
[3]
ALLER MF, 1972, ASTRON ASTROPHYS, V19, P248
[4]
BORD DJ, 1985, ASTRON ASTROPHYS, V143, P461
[6]
COWLEY CR, 1971, OBSERVATORY, V91, P139
[8]
DUPONT A, 1966, THESIS J HOPKINS U
[9]
DWORETSKY MM, 1986, IAU C, V90, P397