@ARTICLE{
author={Kovacevic Andjelka B,Perez-Hernandez Ernesto,Popovic Luka C,Shapovalova Alla I,Kollatschny Wolfram,Ilic Dragana J},
year={2018},
title={Oscillatory patterns in the light curves of five long-term monitored type 1 active galactic nuclei},
journal={MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY},
volume={475},
number={2},
pages={2051-2066},
document_type={Article},
} 

@ARTICLE{
author={Rakic Nemanja,La Mura Giovanni,Ilic Dragana J,Shapovalova AI,Kollatschny Wolfram,Rafanelli Piero,Popovic Luka C},
year={2017},
title={The intrinsic Baldwin effect in broad Balmer lines of six long-term monitored AGNs},
journal={ASTRONOMY & ASTROPHYSICS},
volume={603},
number={},
pages={-},
document_type={Article},
} 

@ARTICLE{
author={Shapovalova Alla I,Popovic Luka C,Chavushyan Vahram H,Afanasiev VL,Ilic Dragana J,Kovacevic Andjelka B,Burenkov Alexander N,Kollatschny Wolfram,Spiridonova O,Valdes JR,Bochkarev Nikolai G,Patino-Alvarez V,Carrasco L,Zhdanova VE},
year={2017},
title={Long-term optical spectral monitoring of NGC 7469},
journal={MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY},
volume={466},
number={4},
pages={4759-4775},
document_type={Article},
} 

@ARTICLE{
author={Shapovalova Alla I,Popovic Luka C,Chavushyan Vahram H,Burenkov Alexander N,Ilic Dragana J,Kollatschny Wolfram,Kovacevic Andjelka B,Valdes JR,Patino-Alvarez V,Leon-Tavares J,Torrealba J,Zhdanova VE},
year={2016},
title={First Long-Term Optical Spectral Monitoring of a Binary Black Hole Candidate E1821+643. I. Variability of Spectral Lines and Continuum},
journal={ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES},
volume={222},
number={2},
pages={-},
document_type={Article},
} 

@ARTICLE{
author={Popovic Luka C,Shapovalova Alla I,Ilic Dragana J,Burenkov Alexander N,Chavushyan Vahram H,Kollatschny Wolfram,Kovacevic Andjelka B,Valdes JR,Leon-Tavares J,Bochkarev Nikolai G,Patino-Alvarez V,Torrealba J},
year={2014},
title={Spectral optical monitoring of the double-peaked emission line AGN Arp 102B II. Variability of the broad line properties},
journal={ASTRONOMY & ASTROPHYSICS},
volume={572},
number={},
pages={-},
document_type={Article},
} 

@ARTICLE{
author={Kovacevic Jelena M,Popovic Luka C,Kollatschny Wolfram},
year={2014},
title={A model for the Balmer pseudocontinuum in spectra of type 1 AGNs},
journal={ADVANCES IN SPACE RESEARCH},
volume={54},
number={7},
pages={1347-1354},
document_type={Article},
} 

@ARTICLE{
author={Ilic Dragana J,Popovic Luka C,Shapovalova Alla I,Burenkov Alexander N,Kollatschny Wolfram,Kovacevic Andjelka B,Chavushyan Vahram H,La Mura Giovanni,Rafanelli Piero},
year={2012},
title={Broad emission lines: A tool for studying nuclei of active galaxies},
journal={XXI INTERNATIONAL CONFERENCE ON SPECTRAL LINE SHAPES (ICSLS 2012)},
volume={397},
number={},
pages={-},
document_type={Proceedings Paper},
} 

@ARTICLE{
author={Shapovalova Alla I,Popovic Luka C,Burenkov Alexander N,Chavushyan Vahram H,Ilic Dragana J,Kovacevic Andjelka B,Kollatschny Wolfram,Kovacevic Jelena M,Bochkarev Nikolay G,Valdes JR,Torrealba J,Leon-Tavares J,Mercado Abelardo,Benitez E,Carrasco L,Dultzin D,de la Fuente E},
year={2012},
title={Spectral Optical Monitoring of the Narrow-Line Seyfert 1 Galaxy Ark 564},
journal={ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES},
volume={202},
number={1},
pages={-},
document_type={Article},
} 

@ARTICLE{
author={Popovic Luka C,Shapovalova Alla I,Ilic Dragana J,Kovacevic Andjelka B,Kollatschny Wolfram,Burenkov Alexander N,Chavushyan Vahram H,Bochkarev Nikolai G,Leon-Tavares J},
year={2011},
title={Spectral optical monitoring of 3C 390.3 in 1995-2007 II. Variability of the spectral line parameters},
journal={ASTRONOMY & ASTROPHYSICS},
volume={528},
number={},
pages={-},
document_type={Article},
} 

@ARTICLE{
author={Shapovalova Alla I,Popovic Luka C,Burenkov Alexander N,Chavushyan Vahram H,Ilic Dragana J,Kollatschny Wolfram,Kovacevic Andjelka B,Bochkarev Nikolai G,Carrasco L,Leon-Tavares J,Mercado Abelardo,Valdes JR,Vlasuyk VV,De la Fuente E},
year={2010},
title={Spectral optical monitoring of 3C 390.3 in 1995-2007 I. Light curves and flux variation in the continuum and broad lines},
journal={ASTRONOMY & ASTROPHYSICS},
volume={517},
number={},
pages={-},
document_type={Article},
}