OPTICAL SPECTROSCOPY AND SYSTEM PARAMETERS FOR 4U 1538-52CRAMPTON D; HUTCHINSON JB; COWLEY AP et al.1978; ASTROPHYS. J.; USA; DA. 1978; VOL. 225; NO 2 PART. 2; PP. L63-L66; BIBL. 15 REF.Article

Spectra and pulse period of the binary X-ray pulsar 4U 1538-52MAKISHIMA, K; KOYAMA, K; HAYAKAWA, S et al.The Astrophysical journal. 1987, Vol 314, Num 2, pp 619-628, issn 0004-637X, 1Article

Pulse-period changes of X-ray pulsars measured with Hakucho and TenmaNAGASE, F; HAYAKAWA, S; ODA, M et al.Publications of the Astronomical Society of Japan. 1984, Vol 36, Num 4, pp 667-678, issn 0004-6264Article

Detecting emission lines with XMM-Newton in 4U 1538-52RODES-ROCA, J. J; PAGE, K. L; TORREJON, J. M et al.Astronomy and astrophysics (Berlin. Print). 2011, Vol 526, issn 0004-6361, 526A64.1-526A64.10, 1Article

Multimission observations of 4U 1538-52COMINSKY, L. R; MORAES, F.The Astrophysical journal. 1991, Vol 370, Num 2, pp 670-676, issn 0004-637X, 7 p., p.1Article

The polar cap structure of the X-ray pulsar 4U 1538-52BULIK, T; MESZAROS, P; WOO, J. W et al.The Astrophysical journal. 1992, Vol 395, Num 2, pp 564-574, issn 0004-637X, p.1Article

Discovery of a cyclotron absorption line in the spectrum of the binary X-ray pulsar 4U 1538-52 observed by GingaCLARK, G. W; WOO, J. W; NAGASE, F et al.The Astrophysical journal. 1990, Vol 353, Num 1, pp 274-280, issn 0004-637X, part 1Article

Orbital phase spectroscopy of four high mass X-ray binary pulsars to study the stellar wind of the companionNAIK, Sachindra; MUKHERJEE, U; PAUL, B et al.Advances in space research. 2009, Vol 43, Num 6, pp 900-904, issn 0273-1177, 5 p.Article