共 18 条
[4]
HEGYI D, 1971, IAU S, V46, P129
[6]
HELFAND JD, 1977, ASTRON J, V82, P701
[7]
LONG-TERM INTENSITY VARIATIONS OF PULSARS OBSERVED AT 2 FREQUENCIES
[J].
NATURE-PHYSICAL SCIENCE,
1972, 235 (54)
:27-&
[8]
Huguenin G. R., 1973, ASTROPHYS J, V181, P139