The effects of seeing on spectral line measurements in Seyfert 1 galaxiesPETERSON, B. M; COLLINS, G. W. II.The Astrophysical journal. 1983, Vol 270, Num 1, pp 71-78, issn 0004-637XArticle

The Seyfert 1 Galaxy Ark 120 in 1996-2005 : UBVRI PhotometryDOROSHENKO, V. T; SERGEEV, S. G; PRONIK, V. I et al.Astronomy reports. 2008, Vol 52, Num 3, pp 167-183, issn 1063-7729, 17 p.Article

The optical luminosity function of Seyfert 1 nucleiCHENG FU-ZHEN; DANESE, L; DE ZOTTI, G et al.Monthly Notices of the Royal Astronomical Society. 1985, Vol 212, Num 4, pp 857-871, issn 0035-8711Article

The Seyfert 1 Galaxy Ark 120. Spectral Variability in 1992-2005DOROSHENKO, V. T; SERGEEV, S. G; PRONIK, V. I et al.Astronomy reports. 2008, Vol 52, Num 6, pp 442-462, issn 1063-7729, 21 p.Article

Some implications of excess soft X-ray emission from Seyfert 1 galaxiesFABIAN, A. C; GUILBERT, P. W; ARNAUD, K. A et al.Monthly Notices of the Royal Astronomical Society. 1986, Vol 218, Num 3, pp 457-464, issn 0035-8711Article

ON THE DYNAMICS OF THE BROAD-LINE GAS IN SEYFERT 1 GALAXIESTOHLINE JE; OSTERBROCK DE.1982; ASTROPHYS. J.; ISSN 0004-637X; USA; DA. 1982; VOL. 252; NO 2; PART. 2; PP. L49-L52; BIBL. 25 REF.Article

THE LINE SPECTRUM OF THE FEII SEYFERT I GALAXY AKN 120KOLLATSCHNY W; SCHLEICHER H; FRICKE KJ et al.1981; ASTRON. ASTROPHYS. (BERL.); ISSN 0004-6361; DEU; DA. 1981; VOL. 104; NO 2; PP. 198-202; BIBL. 20 REF.Article

Variations of the Seyfert galaxy Fairall 9GLASS, I. S.Monthly Notices of the Royal Astronomical Society. 1986, Vol 219, Num 1, pp 5p-11p, issn 0035-8711Article

The effects of stellar-absorption features on the broad-line profiles of Seyfert 1 galaxiesCRENSHAW, D. M; PETERSON, B. M.The Astrophysical journal. 1985, Vol 291, Num 2, pp 677-684, issn 0004-637X, part 1Article

Outflow in the nucleus of the Seyfert I galaxy NGC 3783WAMSTEKER, W; BARR, P.The Astrophysical journal. 1985, Vol 292, Num 2, pp L45-L49, issn 0004-637X, . 2Article

Observations of upper-level hydrogen lines in Seyfert 1 galaxiesMCALARY, C. W; RIEKE, G. H; LEBOFSKY, M. J et al.The Astrophysical journal. 1986, Vol 301, Num 1, pp 105-115, issn 0004-637XArticle

A search for «dwarf» Seyfert 1 nuclei. I: The initial data and resultsFILIPPENKO, A. V; SARGENT, W. L. W.The Astrophysical journal. Supplement series. 1985, Vol 57, Num 3, pp 503-522, issn 0067-0049Article

Variability in the optical continuum of type 1 Seyfert nucleiDE RUITER, H. R; LUB, J.Symposium - International astronomical union. 1985, Num 119, pp 89-90, issn 0074-1809Article

X-ray studies of quasarsZHANG HE-QI; LIU RU-LIANG; YANG HAI-SHOU et al.Chinese physics. 1984, Vol 4, Num 1, pp 36-45, issn 0273-429XArticle

Spatially extended narrow emission-line gas in the Seyfert galaxy NGC 4151HECKMAN, T. M; BALICK, B.The Astrophysical journal. 1983, Vol 268, Num 1, pp 102-104, issn 0004-637XArticle

Emission lines indicating a universal L/M ratio for the central engine in AGN?WANDEL, A.Astrophysics and space science library. 1986, Vol 121, pp 727-735, issn 0067-0057Article

The variability of the spectrum of Arakelian 120. II: Evidence for a small broad line emitting regionPETERSON, B. M; MEYERS, K. A; CAPRIOTTI, E. R et al.The Astrophysical journal. 1985, Vol 292, Num 1, pp 164-171, issn 0004-637X, 1Article

Observational evidence for the radiative acceleration of broad-line clouds in Seyfert 1 galaxies and quasarsGASKELL, C. M.The Astrophysical journal. 1985, Vol 291, Num 1, pp 112-116, issn 0004-637X, 1Article

Variability of the emission-line spectra and optical continua of Seyfert galaxies. III: Results for a homogeneous samplePETERSON, B. M; CRENSHAW, D. M; MEYERS, K. A et al.The Astrophysical journal. 1985, Vol 298, Num 1, pp 283-291, issn 0004-637XArticle

A new X-ray emitting Seyfert 1 galaxyCRISTIANI, S; TARENGHI, M.Astronomy and astrophysics (Berlin. Print). 1984, Vol 132, Num 2, pp 351-353, issn 0004-6361Article

AN EXTRAORDINARY EMISSION-LINE NEBULOSITY ASSOCIATED WITH THE SEYFERT GALAXY MARKARIAN 335HECKMAN TM; BALICK B.1981; ASTROPHYS. J.; ISSN 0004-637X; USA; DA. 1981; VOL. 247; NO 1; PART. 1; PP. 32-41; BIBL. 21 REF.Article

TEMPORAL VARIATIONS OF THE BALMER LINE PROFILES IN THE SPECTRUM OF THE SEYFERT 1 GALAXY ARAKELIAN 120FOLTZ CB; PETERSON BM; CAPRIOTTI ER et al.1981; ASTROPHYS. J.; ISSN 0004-637X; USA; DA. 1981; VOL. 250; NO 2; PART. 1; PP. 508-512; BIBL. 15 REF.Article

THE SPECTRUM OF III ZW 77: AN UNUSUAL, HIGH-IONIZATION SEYFERT 1 GALAXYOSTERBROCK DE.1981; ASTROPHYS. J.; ISSN 0004-637X; USA; DA. 1981; VOL. 246; NO 3; PART. 1; PP. 696-707; BIBL. 49 REF.Article

LA CINETIQUE DU GAZ DANS LES NOYAUX DES GALAXIES DE SEYFERT ET DES QUASARSDIBAJ EH A; POSTNOV KA; FABRIKA SN et al.1982; PIS'MA ASTR. ZH.; SUN; DA. 1982; VOL. 8; NO 1; PP. 3-8; ABS. ENG; BIBL. 17 REF.Article

FORMATION AND TRANSFER OF PERMITTED SI II EMISSION LINES IN SEYFERT I GALAXIES AND QUASARSDUMONT AM; MATHEZ G.1981; ASTRON. ASTROPHYS. (BERL.); ISSN 0004-6361; DEU; DA. 1981; VOL. 102; NO 1; PP. 1-7; BIBL. 31 REF.Article