@article{Ilic:2013+d, author = "Ilic, Dragana and Popovic, Luka and Shapovalova, Alla I and Burenkov, Alexander N and Chavushyan, Vahram and Kovacevic, Andjelka and Kollatschny, Wolfram", title = "{The variability of the optical spectra of three type 1 AGN}", doi = "10.22323/1.169.0013", journal = "PoS", year = 2013, volume = "Seyfert 2012", pages = "013" }