@ARTICLE{
author={Shapovalova Alla I|,Popovic Luka C|0000-0003-2398-7664,Collin S|,Burenkov Alexander N|,Chavushyan Vahram H|,Bochkarev Nikolay G|,Benitez E|,Dultzin D|,Kovacevic Andjelka B|0000-0001-5139-1978,Borisov N|,Carrasco L|,Leon-Tavares J|,Mercado Abelardo|,Valdes JR|,Vlasuyk VV|,Zhdanova VE|},
year={2008},
title={Long-term variability of the optical spectra of NGC 4151 - I. Light curves and flux correlations},
journal={ASTRONOMY & ASTROPHYSICS},
volume={486},
number={1},
pages={99-U81},
document_type={Article},
}