共 51 条
[2]
ATTWOOD B, 1979, PUB ASP, V91, P120
[5]
BRADT H, 1979, COSPAR XRAY ASTRONOM
[6]
BROMAGE GE, 1973, ASTRON ASTROPHYS, V26, P17
[7]
CANIZARES C, 1979, IAU3362 CIRC