Observation of soft X-ray spectra from a Seyfert 1 and a narrow emission-line galaxy
1987 ◽
Vol 226
(1)
◽
pp. 9P-13P
◽
1997 ◽
Vol 291
(1)
◽
pp. L17-L22
◽
2014 ◽
Vol 568
◽
pp. A108
◽
1997 ◽
Vol 288
(2)
◽
pp. 273-285
◽
1996 ◽
Vol 281
(1)
◽
pp. 71-83
◽
1997 ◽
Vol 289
(3)
◽
pp. 693-699
◽
1996 ◽
Vol 282
(1)
◽
pp. 94-98
◽