Unosi

• 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

• 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