Ongoing star formation in the BL lacertae object PKS 2005-489BRESSAN, A; FALOMO, R; VALDES, J. R et al.The Astrophysical journal. 2006, Vol 645, Num 2, issn 0004-637X, L101-L104, 2Article

X-ray/UV/optical follow-up of the blazar pks 2155-304 after the giant tev flares of 2006 julyFOSCHINI, L; GHISELLINI, G; TOSTI, G et al.The Astrophysical journal. 2007, Vol 657, Num 2, issn 0004-637X, L81-L84, 2Article

Imaging redshifts of BL lacertae objectsSBARUFATTI, B; TREVES, A; FALOMO, R et al.The Astrophysical journal. 2005, Vol 635, Num 1, pp 173-179, issn 0004-637X, 7 p., 1Article

Near infrared intraday variability of Mrk 421GUPTA, A. C; BANERJEE, D. P. K; ASHOK, N. M et al.Astronomy and astrophysics (Berlin. Print). 2004, Vol 422, Num 2, pp 505-508, issn 0004-6361, 4 p.Article

NEARLY PERIODIC FLUCTUATIONS IN THE LONG-TERM X-RAY LIGHT CURVES OF THE BLAZARS AO 0235+164 AND 1ES 2321+419RANI, Bindu; WIITA, Paul J; GUPTA, Alok C et al.The Astrophysical journal. 2009, Vol 696, Num 2, pp 2170-2178, issn 0004-637X, 9 p., 1Article

PERIODIC OSCILLATIONS IN THE INTRA-DAY OPTICAL LIGHT CURVES OF THE BLAZAR S5 0716+714GUPTA, Alok C; SRIVASTAVA, A. K; WIITA, Paul J et al.The Astrophysical journal. 2009, Vol 690, Num 1, pp 216-223, issn 0004-637X, 8 p., 1Article

B and l-band optical micro-variability observations of the BL Lac objects S5 2007+777 and 3C 371XILOURIS, E. M; PAPADAKIS, I. E; BOUMIS, P et al.Astronomy and astrophysics (Berlin. Print). 2006, Vol 448, Num 1, pp 143-153, issn 0004-6361, 11 p.Article

Observations of 54 Active Galactic Nuclei with the HEGRA system of Cherenkov telescopesAHARONIAN, F; AKHPERJANIAN, A; DENNINGHOFF, S et al.Astronomy and astrophysics (Berlin. Print). 2004, Vol 421, Num 2, pp 529-537, issn 0004-6361, 9 p.Article

DETECTION OF INTRA-DAY VARIABILITY TIMESCALES OF FOUR HIGH-ENERGY PEAKED BLAZARS WITH XMM-NEWTONGAUR, Haritma; GUPTA, Alok C; LACHOWICZ, Pawel et al.The Astrophysical journal. 2010, Vol 718, Num 1, pp 279-291, issn 0004-637X, 13 p., 1Article

Blazar γ-rays, shock acceleration, and the extragalactic background lightSTECKER, Floyd W; BARING, Matthew G; SUMMERLIN, Errol J et al.The Astrophysical journal. 2007, Vol 667, Num 1, issn 0004-637X, L29-L32, 2Article

Highly polarized optically selected BL lacertae objectsSMITH, Paul S; GRANT WILLIAMS, G; SCHMIDT, Gary D et al.The Astrophysical journal. 2007, Vol 663, Num 1, pp 118-124, issn 0004-637X, 7 p., 1Article

Observations of markarian 421 with the magic telescopeALBERT, J; ALIU, E; BECKER, J et al.The Astrophysical journal. 2007, Vol 663, Num 1, pp 125-138, issn 0004-637X, 14 p., 1Article

THE TeV ENERGY SPECTRUM OF MARKARIAN 421 MEASURED IN A HIGH FLARING STATEKONOPELKO, Alexander; WEI CUI; DUKE, Charlie et al.The Astrophysical journal. 2008, Vol 679, Num 1, issn 0004-637X, L13-L15, 2Article

FERMI OBSERVATIONS OF THE VERY HARD GAMMA-RAY BLAZAR PG 1553+113ABDO, A. A; ACKERMANN, M; BELLAZZINI, R et al.The Astrophysical journal. 2010, Vol 708, Num 2, pp 1310-1320, issn 0004-637X, 11 p., 1Article

POWERFUL HIGH-ENERGY EMISSION OF THE REMARKABLE BL Lac OBJECT S5 0716+714VITTORINI, V; TAVANI, M; PACCIANI, L et al.The Astrophysical journal. 2009, Vol 706, Num 2, pp 1433-1437, issn 0004-637X, 5 p., 1Article

Is the radio core of BL lacertae precessing?MUTEL, R. L; DENN, G. R.The Astrophysical journal. 2005, Vol 623, Num 1, pp 79-84, issn 0004-637X, 6 p., 1Article

GAMMA-RAY FLARES FROM Mrk421 IN 2008 OBSERVED WITH THE ARGO-YBJ DETECTORAIELLI, G; BACCI, C; CAMARRI, P et al.The Astrophysical journal. 2010, Vol 714, Num 2, issn 0004-637X, L208-L212, 2Article

Properties of low radio luminosity rgb BL Lac objectsCHEN, L. E; XIE, G. Z; REN, J. Y et al.The Astrophysical journal. 2006, Vol 637, Num 2, pp 711-716, issn 0004-637X, 6 p., 1Article

Redshift constraints for RGB 0136+391 and PKS 0735+178 from deep optical imagingNILSSON, K; PURSIMO, T; VILLFORTH, C et al.Astronomy and astrophysics (Berlin. Print). 2012, Vol 547, issn 0004-6361, A1.1-A1.6, 1Article

Unusual optical quiescence of the classical BL Lac object PKS 0735+178 on intranight time-scaleGOYAL, Arti; GOPAL-KRISHNA; ANUPAMA, G. C et al.Monthly notices of the Royal Astronomical Society (Print). 2009, Vol 399, Num 3, pp 1622-1632, issn 0035-8711, 11 p.Article

POSSIBLE GeV EMISSION FROM TeV BLAZARSYANG, C. Y; FANG, J; LIN, G. F et al.The Astrophysical journal. 2008, Vol 682, Num 2, pp 767-774, issn 0004-637X, 8 p., 1Article

XMM-NEWTON OBSERVATIONS OF THE TeV BL LACERTAE OBJECT PKS 2155-304 IN 2006 : SIGNATURE OF INVERSE COMPTON X-RAY EMISSION?ZHANG, Y. H.The Astrophysical journal. 2008, Vol 682, Num 2, pp 789-797, issn 0004-637X, 9 p., 1Article

Optical and near-infrared simultaneous observations of the BL Lacs PKS 2005-489 and PKS 2155-304DOMINICI, T. P; ABRAHAM, Z; GALO, A. L et al.Astronomy and astrophysics (Berlin. Print). 2006, Vol 460, Num 3, pp 665-672, issn 0004-6361, 8 p.Article

A search for warm-hot intergalactic medium features in the X-ray spectra of Mkn 421 with the XMM-newton RGSRAVASIO, M; TAGLIAFERRI, G; POLLOCK, A. M. T et al.Astronomy and astrophysics (Berlin. Print). 2005, Vol 438, Num 2, pp 481-490, issn 0004-6361, 10 p.Article

EMITTING ELECTRONS AND SOURCE ACTIVITY IN MARKARIAN 501MANKUZHIYIL, Nijil; ANSOLDI, Stefano; PERSIC, Massimo et al.The Astrophysical journal. 2012, Vol 753, Num 2, issn 0004-637X, 154.1-154.7, 1Article