@ARTICLE{
author={Fatovic Marta,Ilic Dragana J,Kovacevic Andjelka B,Palaversa Lovro,Simic Sasa Z,Popovic Luka C,Thanjavur Karun,Razim Oleksandra,Ivezic Zeljko,Yue Minghao,Fan Xiaohui},
year={2025},
title={Time evolution of Mg <sc>II</sc> in SDSS J2320+0024: Implications for a subparsec binary supermassive black hole system},
journal={ASTRONOMY & ASTROPHYSICS},
volume={695},
number={},
pages={-},
document_type={Article},
} 

@ARTICLE{
author={Jovanovic Predrag P,Simic Sasa Z,Jovanovic Borka V,Borka Dusko V,Popovic Luka C},
year={2025},
title={The comparison of an optical and X-ray counterpart of subparsec supermassive binary black holes},
journal={ADVANCES IN SPACE RESEARCH},
volume={75},
number={1},
pages={1441-1458},
document_type={Article},
} 

@ARTICLE{
author={Ilic Dragana J,Popovic Luka C,...,Kovacevic Andjelka B,Jovicic Jovana,Mikovic Djordje,Rakic Nemanja,Simic Sasa Z,Marceta-Mandic Sladjana,...,(broj koautora 23)},
year={2024},
title={Long-Term Optical Monitoring of Broad-Line AGNs (LoTerm AGN): Case Study of NGC 3516},
journal={PHYSICS},
volume={6},
number={1},
pages={31-45},
document_type={Article},
} 

@ARTICLE{
author={Miladinovic Tatjana B,Simic Sasa Z,Danilovic Nebojsa},
year={2023},
title={Ionization Transition Rates in the Intermediate Regime of the Keldysh Parameter for a (0,1)*LG Spiral Amplitude Modulated Laser Field},
journal={JOURNAL OF EXPERIMENTAL AND THEORETICAL PHYSICS},
volume={136},
number={6},
pages={690-698},
document_type={Article},
} 

@ARTICLE{
author={Kovacevic Andjelka B,Radovic Viktor M,Ilic Dragana J,Popovic Luka C,...,Caplar Neven,...,Jankov Isidora,...,Kovacevic-Dojcinovic Jelena M,Lakicevic Masa D,Savic Djordje V,Vince Oliver I,Simic Sasa Z,Cvorovic-Hajdinjak Iva,Marceta-Mandic Sladjana},
year={2022},
title={The LSST Era of Supermassive Black Hole Accretion Disk Reverberation Mapping},
journal={ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES},
volume={262},
number={2},
pages={-},
document_type={Article},
} 

@ARTICLE{
author={Popovic Luka C,Simic Sasa Z,Kovacevic Andjelka B},
year={2022},
title={Preface: Spectral shapes in astrophysics},
journal={ASTRONOMISCHE NACHRICHTEN},
volume={343},
number={1-2},
pages={-},
document_type={Article; Proceedings Paper},
} 

@ARTICLE{
author={Simic Sasa Z,Popovic Luka C,Kovacevic Andjelka B,Ilic Dragana J},
year={2022},
title={The broad emission line asymmetry in a low mass ratio of supermassive binary black holes on elliptical orbits},
journal={ASTRONOMISCHE NACHRICHTEN},
volume={343},
number={1-2},
pages={-},
document_type={Article},
} 

@ARTICLE{
author={Kovacevic Andjelka B,Ilic Dragana J,Popovic Luka C,Radovic Viktor M,Jankov Isidora,Yoon Ilsang,Caplar Neven,Cvorovic-Hajdinjak Iva,Simic Sasa Z},
year={2021},
title={On possible proxies of AGN light-curves cadence selection in future time domain surveys},
journal={MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY},
volume={505},
number={4},
pages={5012-5028},
document_type={Article},
} 

@ARTICLE{
author={Popovic Luka C,Simic Sasa Z,Kovacevic Andjelka B,Ilic Dragana J},
year={2021},
title={Detecting subparsec supermassive binary black holes: Long-term monitoring perspective},
journal={MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY},
volume={505},
number={4},
pages={5192-5211},
document_type={Article},
} 

@ARTICLE{
author={Popovic Luka C,Simic Sasa Z,Kovacevic Andjelka B,Ilic Dragana J},
year={2021},
title={Detecting subparsec supermassive binary black holes: Long-term monitoring perspective},
journal={MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY},
volume={505},
number={4},
pages={5192-5211},
document_type={Article},
} 

@ARTICLE{
author={Kovacevic Andjelka B,Ilic Dragana J,Popovic Luka C,Radovic Viktor M,Jankov Isidora,Yoon Ilsang,Caplar Neven,Cvorovic-Hajdinjak Iva,Simic Sasa Z},
year={2021},
title={On possible proxies of AGN light-curves cadence selection in future time domain surveys},
journal={MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY},
volume={505},
number={4},
pages={5012-5028},
document_type={Article},
} 

@ARTICLE{
author={Miladinovic Tatjana B,Simic Sasa Z,Danilovic Nebojsa,Jeremic Marija Z},
year={2021},
title={Influence of (0,1)* Laguerre-Gaussian Field Distribution on Tunneling Ionization Rate},
journal={JOURNAL OF EXPERIMENTAL AND THEORETICAL PHYSICS},
volume={132},
number={5},
pages={753-765},
document_type={Article},
} 

@ARTICLE{
author={Popovic Luka C,Afanasiev Viktor L,Moiseev AV,Smirnova AA,Simic Sasa Z,Savic Djordje V,Mediavilla EG,Fian C},
year={2020},
title={Spectroscopy and polarimetry of the gravitationally lensed quasar SDSS J1004+4112 with the 6m SAO RAS telescope},
journal={ASTRONOMY & ASTROPHYSICS},
volume={634},
number={},
pages={-},
document_type={Article},
} 

@ARTICLE{
author={Kovacevic Andjelka B,Popovic Luka C,Simic Sasa Z,Ilic Dragana J},
year={2019},
title={The Optical Variability of Supermassive Black Hole Binary Candidate PG 1302-102: Periodicity and Perturbation in the Light Curve},
journal={ASTROPHYSICAL JOURNAL},
volume={871},
number={1},
pages={-},
document_type={Article},
} 

@ARTICLE{
author={Simic Sasa Z,Popovic Luka C},
year={2016},
title={Line shifts and sub-pc super-massive binary black holes},
journal={ASTROPHYSICS AND SPACE SCIENCE},
volume={361},
number={2},
pages={-},
document_type={Article},
} 

@ARTICLE{
author={Nina Aleksandra M,Simic Sasa Z,Sreckovic Vladimir A,Popovic Luka C},
year={2015},
title={Detection of short-term response of the low ionosphere on gamma ray bursts},
journal={GEOPHYSICAL RESEARCH LETTERS},
volume={42},
number={19},
pages={8250-8261},
document_type={Article},
} 

@ARTICLE{
author={Simic Sasa Z,Popovic Luka C},
year={2014},
title={Broad spectral line and continuum variabilities in QSO spectra induced by microlensing of diffusive massive substructure},
journal={ADVANCES IN SPACE RESEARCH},
volume={54},
number={7},
pages={1439-1447},
document_type={Article},
} 

@ARTICLE{
author={Popovic Luka C,Simic Sasa Z},
year={2013},
title={Spectrophotometric variability of quasars caused by lensing of diffuse massive substructure: consequences on flux anomaly and precise astrometric measurements},
journal={MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY},
volume={432},
number={1},
pages={848-856},
document_type={Article},
} 

@ARTICLE{
author={Simic Sasa Z,Kovacevic Milan S},
year={2013},
title={Computer sound card as a tool to study of fast changing electromagnetic phenomena},
journal={COMPUTER APPLICATIONS IN ENGINEERING EDUCATION},
volume={21},
number={1},
pages={158-163},
document_type={Article},
} 

@ARTICLE{
author={Kovacevic Milan S,Savovic Svetislav M,Djordjevich Alexandar,Bajic Jovan S,Stupar Dragan Z,Kovacevic Milojko S,Simic Sasa Z},
year={2013},
title={Measurements of growth and decay of radiation induced attenuation during the irradiation and recovery of plastic optical fibres},
journal={OPTICS AND LASER TECHNOLOGY},
volume={47},
number={},
pages={148-151},
document_type={Article},
} 

@ARTICLE{
author={Simic Sasa Z,Popovic Luka C},
year={2012},
title={Physical Parameters of the Relativistic Shock Waves in GRBs: the Case of 30 GRBs},
journal={INTERNATIONAL JOURNAL OF MODERN PHYSICS D},
volume={21},
number={3},
pages={-},
document_type={Article},
} 

@ARTICLE{
author={Simic Sasa Z,Popovic Luka C,Jovanovic Predrag P},
year={2011},
title={Influence of Microlensing on Spectral Anomalies of the Lensed Objects},
journal={BALTIC ASTRONOMY},
volume={20},
number={3},
pages={481-485},
document_type={Article},
} 

@ARTICLE{
author={Donnarumma I,...,Popovic Luka C,Simic Sasa Z,...,(broj koautora 37)},
year={2011},
title={The Remarkable Gamma-ray Activity in the Gravitationally Lensed Blazar PKS 1830-211},
journal={ASTROPHYSICAL JOURNAL LETTERS},
volume={736},
number={2},
pages={-},
document_type={Article},
} 

@ARTICLE{
author={Kovacevic Milan S,Simic Sasa Z},
year={2010},
title={Plastic optical fiber as a tool for experimenting with simple pendulum},
journal={REVISTA BRASILEIRA DE ENSINO DE FISICA},
volume={32},
number={3},
pages={-},
document_type={Article},
} 

@ARTICLE{
author={Dimitrijevic Milan S,Popovic Luka C,Jevremovic Darko M,Dacic Miodrag D,Jovanovic Predrag P,Kovacevic Andjelka B,Simic Sasa Z,Simic Zoran J,Ilic Dragana J,Bon Edi A,Gavrilovic Natasa,Kovacevic Jelena M,Milovanovic Nenad D,Tankosic Dragana V,Stalevski Marko},
year={2009},
title={Activities of the Group for Astrophysical Spectroscopy 2005-2008},
journal={PROCEEDINGS OF THE XV NATIONAL CONFERENCE OF ASTRONOMERS OF SERBIA},
volume={86},
number={},
pages={271-278},
document_type={Proceedings Paper},
} 

@ARTICLE{
author={Jovanovic Predrag P,Popovic Luka C,Simic Sasa Z},
year={2009},
title={Influence of gravitational microlensing on broad absorption lines of QSOs: The case of the Fe K alpha line},
journal={NEW ASTRONOMY REVIEWS},
volume={53},
number={7-10},
pages={156-161},
document_type={Proceedings Paper},
} 

@ARTICLE{
author={Simic Sasa Z,Popovic Luka C},
year={2008},
title={Variability Of Grb Light Curve: Shock Wave Model Modification},
journal={24TH SUMMER SCHOOL AND INTERNATIONAL SYMPOSIUM ON THE PHYSICS OF IONIZED GASES, CONTRIBUTED PAPERS},
volume={},
number={84},
pages={444-444},
document_type={Proceedings Paper},
} 

@ARTICLE{
author={Simic Sasa Z,Popovic Luka C},
year={2008},
title={Variability of GRB light curve: Shock wave model modification - art. no. 012030},
journal={24TH SUMMER SCHOOL AND INTERNATIONAL SYMPOSIUM ON THE PHYSICS OF IONIZED GASES},
volume={133},
number={},
pages={12030-12030},
document_type={Proceedings Paper},
} 

@ARTICLE{
author={Simic Sasa Z,Popovic Luka C},
year={2008},
title={Investigation Of Element Abundances In The Surroundings Of Grb Afterglows},
journal={INTERNATIONAL JOURNAL OF MODERN PHYSICS D},
volume={17},
number={9},
pages={1377-1382},
document_type={Proceedings Paper},
} 

@ARTICLE{
author={Simic Sasa Z,Popovic Luka C},
year={2007},
title={Spectral lines in the afterglow of gamma ray bursts},
journal={SPECTRAL LINE SHAPES IN ASTROPHYSICS},
volume={938},
number={},
pages={88-93},
document_type={Proceedings Paper},
} 

@ARTICLE{
author={Simic Sasa Z,Popovic Luka C,Andersen Michael I,Christensen Lise},
year={2007},
title={Mechanism of light curve variability in the gamma ray bursts},
journal={ASTROPHYSICS AND SPACE SCIENCE},
volume={309},
number={1-4},
pages={173-177},
document_type={Article},
} 

@ARTICLE{
author={Simic Sasa Z,Andersen Michael I,Popovic Luka C,Christensen Lise},
year={2005},
title={A model for temporal variability of the GRB light curve},
journal={Astrophysical Sources of High Energy Particles and Radiation},
volume={801},
number={},
pages={139-140},
document_type={Proceedings Paper},
} 

@ARTICLE{
author={Simic Sasa Z},
year={2004},
title={A model of internal gamma-ray burst shocks},
journal={BALTIC ASTRONOMY},
volume={13},
number={2},
pages={297-300},
document_type={Article},
} 

@ARTICLE{
author={Popovic Luka C,Simic Sasa Z,Milovanovic Nenad D,Dimitrijevic Milan S},
year={2001},
title={Stark broadening effect in stellar atmospheres: NdII lines},
journal={ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES},
volume={135},
number={1},
pages={109-114},
document_type={Article},
}