Unosi

• Time Lag Between the Optical Continuum and Line Variabilities of NGC 4151 (2007-09)

  A. Kovačević, A. Shapovalova, L. Popović, N. Bochkarev, A. Burenkov, V. Chavushyan, Time Lag Between the Optical Continuum and Line Variabilities of NGC 4151, aip conference proceedings, Vol. 938, pp. 98 - 103, Sep, 2007

• Jet-BLR connection in the radio galaxy 3C 390.3. (2008)

  T. Arshakian, J. Leon-Tavares, A. Lobanov, V. Chavushyan, L. Popović, A. Shapovalova, A. Burenkov, J. Zensus, Jet-BLR connection in the radio galaxy 3C 390.3., Memorie della Società astronomica italiana supplementi, Vol. 79, pp. 1022 - 1029, 2008

• Jet-BLR connection in the radio galaxy 3C 390.3. (2008-01)

  T. Arshakian, J. Leon-Tavares, A. Lobanov, V. Chavushyan, L. Popović, A. Shapovalova, A. Burenkov, J. Zensus, Jet-BLR connection in the radio galaxy 3C 390.3., MEMORIE della Società Astronomica Italiana, Vol. 79, pp. 1022 - 1029, Jan, 2008

• Probing the Physical Properties of the NGC 5548 Broad Line Region Using Balmer Lines (2008-02)

  L. Popović, A. Shapovalova, V. Chavushyan, D. Ilić, A. Burenkov, A. Mercado, N. Bochkarev, Probing the Physical Properties of the NGC 5548 Broad Line Region Using Balmer Lines, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, Vol. 60, No. 1, pp. 1 - 9, Feb, 2008

• Long-term variability of the optical spectra of NGC 4151. I. Light curves and flux correlations (2008-07)

  A. Shapovalova, L. Popović, S. Collin, A. Burenkov, V. Chavushyan, N. Bochkarev, E. Benitez, D. Dultzin, A. Kovačević, N. Borisov, L. Carrasco, J. Leon-Tavares, A. Mercado, J. Valdes, V. Vlasuyk, V. Zhdanova, Long-term variability of the optical spectra of NGC 4151. I. Light curves and flux correlations, ASTRONOMY AND ASTROPHYSICS, Vol. 486, No. 1, pp. 99 - 111, Jul, 2008

• Long-term variability of the Broad Emission Line profiles in AGN (2009-07)

  A. Shapovalova, L. Popović, N. Bochkarev, A. Burenkov, V. Chavushyan, S. Collin, V. Doroshenko, D. Ilić, A. Kovačević, Long-term variability of the Broad Emission Line profiles in AGN, NEW ASTRONOMY REVIEWS, Vol. 53, No. 1-10, pp. 191 - 197, Jul, 2009

• Long-term variability of the optical spectra of NGC 4151. II. Evolution of the broad Hα and Hβ emission-line profiles (2010-01)

  A. Shapovalova, L. Popović, A. Burenkov, V. Chavushyan, D. Ilić, A. Kovačević, N. Bochkarev, J. Leon-Tavares, Long-term variability of the optical spectra of NGC 4151. II. Evolution of the broad Hα and Hβ emission-line profiles, ASTRONOMY AND ASTROPHYSICS, Vol. 509, pp. 1 - 20, Jan, 2010

• Spectral optical monitoring of 3C 390.3 in 1995-2007. I. Light curves and flux variation in the continuum and broad lines (2010-07)

  A. Shapovalova, L. Popović, A. Burenkov, V. Chavushyan, D. Ilić, W. Kollatschny, A. Kovačević, N. Bochkarev, L. Carrasco, J. Leon-Tavares, A. Mercado, J. Valdes, V. Vlasuyk, E. de la Fuente, Spectral optical monitoring of 3C 390.3 in 1995-2007. I. Light curves and flux variation in the continuum and broad lines, ASTRONOMY AND ASTROPHYSICS, Vol. 517, pp. 1 - 27, Jul, 2010

• Spectral optical monitoring of 3C 390.3 in 1995-2007. II. Variability of the spectral line parameters (2011-04)

  L. Popović, A. Shapovalova, D. Ilić, A. Kovačević, W. Kollatschny, A. Burenkov, V. Chavushyan, N. Bochkarev, J. Leon-Tavares, Spectral optical monitoring of 3C 390.3 in 1995-2007. II. Variability of the spectral line parameters, ASTRONOMY AND ASTROPHYSICS, Vol. 528, pp. 1 - 25, Apr, 2011

• Spectral Monitoring of AGN: Preliminary Results for Ark 564 and Arp 102B (2011-08)

  A. Shapovalova, L. Popović, D. Ilić, A. Kovačević, J. Kovačević, A. Burenkov, V. Chavushyan, Spectral Monitoring of AGN: Preliminary Results for Ark 564 and Arp 102B, BALTIC ASTRONOMY, Vol. 20, No. 3, pp. 476 - 480, Aug, 2011

• Long-term variability of the optical spectra of NGC 4151 (2012)

  A. Shapovalova, L. Popović, S. Collin, A. Burenkov, V. Chavushyan, N. Bochkarev, D. Ilić, A. Mercado, Long-term variability of the optical spectra of NGC 4151, Astronomical and Astrophysical Transactions, Vol. 27, No. 3, pp. 429 - 432, 2012

• Broad emission lines: A tool for studying nuclei of active galaxies (2012)

  D. Ilić, L. Popović, A. Shapovalova, A. Burenkov, W. Kollatschny, A. Kovačević, V. Chavushyan, G. La Mura, P. Rafanelli, Broad emission lines: A tool for studying nuclei of active galaxies, Journal of physics. Conference series (Print), Vol. 397, pp. 1 - 11, 2012

• Spectral Optical Monitoring of the Narrow-line Seyfert 1 Galaxy Ark 564 (2012-09)

  A. Shapovalova, L. Popović, A. Burenkov, V. Chavushyan, D. Ilić, A. Kovačević, W. Kollatschny, J. Kovačević, N. Bochkarev, J. Valdes, J. Torrealba, J. Leon-Tavares, A. Mercado, E. Benitez, L. Carrasco, D. Dultzin, E. de la Fuente, Spectral Optical Monitoring of the Narrow-line Seyfert 1 Galaxy Ark 564, ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, Vol. 202, No. 1, pp. 1 - 22, Sep, 2012

• The broad line emission from the AGN 3C 390.3: complex broad-line region and perturbation in accretion disk (2013-02)

  D. Ilić, L. Popović, A. Shapovalova, A. Burenkov, V. Chavushyan, A. Kovačević, W. Kollatschny, The broad line emission from the AGN 3C 390.3: complex broad-line region and perturbation in accretion disk, Proceedings of the International Astronomical Union, Vol. 8, No. S290, pp. 205 - 206, Feb, 2013

• Spectral optical monitoring of a double-peaked emission line AGN Arp 102B. Variability of spectral lines and continuum (2013-11)

  A. Shapovalova, L. Popović, A. Burenkov, V. Chavushyan, D. Ilić, W. Kollatschny, A. Kovačević, N. Bochkarev, J. Valdes, J. Torrealba, V. Patino-Alvarez, J. Leon-Tavares, E. Benitez, L. Carrasco, D. Dultzin, A. Mercado, V. Zhdanova, Spectral optical monitoring of a double-peaked emission line AGN Arp 102B. Variability of spectral lines and continuum, ASTRONOMY AND ASTROPHYSICS, Vol. 559, pp. 1 - 17, Nov, 2013

• Time series analysis of active galactic nuclei: The case of Arp 102B, 3C 390.3, NGC 5548 and NGC 4051 (2014-10)

  A. Kovačević, L. Popović, A. Shapovalova, D. Ilić, A. Burenkov, V. Chavushyan, Time series analysis of active galactic nuclei: The case of Arp 102B, 3C 390.3, NGC 5548 and NGC 4051, ADVANCES IN SPACE RESEARCH, Vol. 54, No. 7, pp. 1414 - 1428, Oct, 2014

• Spectral optical monitoring of the double-peaked emission line AGN Arp 102B. II. Variability of the broad line properties (2014-12)

  L. Popović, A. Shapovalova, D. Ilić, A. Burenkov, V. Chavushyan, W. Kollatschny, A. Kovačević, J. Valdes, J. Leon-Tavares, N. Bochkarev, V. Patino-Alvarez, J. Torrealba, Spectral optical monitoring of the double-peaked emission line AGN Arp 102B. II. Variability of the broad line properties, ASTRONOMY AND ASTROPHYSICS, Vol. 572, pp. 1 - 17, Dec, 2014

• Time Delay Evolution of Five Active Galactic Nuclei (2015-12)

  L. Popović, A. Kovačević, A. Shapovalova, D. Ilić, A. Burenkov, V. Chavushyan, Time Delay Evolution of Five Active Galactic Nuclei, JOURNAL OF ASTROPHYSICS AND ASTRONOMY, Vol. 36, No. 4, pp. 475 - 493, Dec, 2015

• Line Shape Variability in a Sample of AGN with Broad Lines (2015-12)

  D. Ilić, L. Popović, A. Shapovalova, A. Burenkov, V. Chavushyan, A. Kovačević, Line Shape Variability in a Sample of AGN with Broad Lines, JOURNAL OF ASTROPHYSICS AND ASTRONOMY, Vol. 36, No. 4, pp. 433 - 445, Dec, 2015

• Time Delay Evolution of Five Active Galactic Nuclei (2015-12)

  A. Kovačević, L. Popović, A. Shapovalova, D. Ilić, A. Burenkov, V. Chavushyan, Time Delay Evolution of Five Active Galactic Nuclei, JOURNAL OF ASTROPHYSICS AND ASTRONOMY, Vol. 36, No. 4, pp. 475 - 493, Dec, 2015