Long-term variability of the optical spectra of NGC 4151A. I. Shapovalova, V. E. Zhdanova, V. V. Vlasuyk et al.|Astronomy and Astrophysics|2008Cited by 74
Long-term optical spectral monitoring of a changing-look active galactic nucleus NGC 3516 – I. Continuum and broad-line flux variabilityA. I. Shapovalova, V. E. Zhdanova, Luka Č. Popović et al.|Monthly Notices of the Royal Astronomical Society|2019Cited by 60
Spectral optical monitoring of a double-peaked emission line AGN Arp 102BA. I. Shapovalova, V. E. Zhdanova, Luka Č. Popović et al.|Astronomy and Astrophysics|2013Cited by 38
Long-term variability of the optical spectra of NGC 4151: I. Light curves and flux correlationsA. I. Shapovalova, V. E. Zhdanova, Luka Č. Popović et al.|arXiv (Cornell University)|2008Cited by 31
Spectral optical monitoring of a double-peaked emission line AGN Arp 102B Variability of spectral lines and continuumA. I. Shapovalova, V. E. Zhdanova, Luka Č. Popović et al.|Aaltodoc (Aalto University)|2013Cited by 20