Raju Aman N,Kovacevic Andjelka B,Ilic Dragana J,Tombesi Francesco,Popovic Luka C,Eric Slezak,Sanchez-Saez Paula,Pavlovic Marina,Cvorovic-Hajdinjak Iva,Simic Sasa Z,Savic Djordje V (2026) A meta-learning framework for multitask reverberation mapping in active galactic nuclei, ASTRONOMY & ASTROPHYSICS, vol. 712, br. , str. - (Article) Kovacevic Andjelka B,Ilic Dragana J,Mestric Uros,Stankovic-Cerovic Milena,De Bonis Natale,Popovic Luka C,Simic Sasa Z,...,Savic Djordje V (2026) QhX Catalog of Coherent and Quasi-coherent Active Galactic Nucleus Variability from Vera C. Rubin LSST DP1, ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, vol. 285, br. 2, str. - (Article) 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 (2025) Time evolution of Mg II in SDSS J2320+0024: Implications for a subparsec binary supermassive black hole system, ASTRONOMY & ASTROPHYSICS, vol. 695, br. , str. - (Article) Jovanovic Predrag P,Simic Sasa Z,Jovanovic Borka V,Borka Dusko V,Popovic Luka C (2025) The comparison of an optical and X-ray counterpart of subparsec supermassive binary black holes, ADVANCES IN SPACE RESEARCH, vol. 75, br. 1, str. 1441-1458 (Article) Ilic Dragana J,Popovic Luka C,...,Kovacevic Andjelka B,Jovicic Jovana,Mikovic Djordje,Rakic Nemanja,Simic Sasa Z,Marceta-Mandic Sladjana,...,(broj koautora 23) (2024) Long-Term Optical Monitoring of Broad-Line AGNs (LoTerm AGN): Case Study of NGC 3516, PHYSICS, vol. 6, br. 1, str. 31-45 (Article) Miladinovic Tatjana B,Simic Sasa Z,Danilovic Nebojsa (2023) Ionization Transition Rates in the Intermediate Regime of the Keldysh Parameter for a (0,1)*LG Spiral Amplitude Modulated Laser Field, JOURNAL OF EXPERIMENTAL AND THEORETICAL PHYSICS, vol. 136, br. 6, str. 690-698 (Article) 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 (2022) The LSST Era of Supermassive Black Hole Accretion Disk Reverberation Mapping, ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, vol. 262, br. 2, str. - (Article) Popovic Luka C,Simic Sasa Z,Kovacevic Andjelka B (2022) Preface: Spectral shapes in astrophysics, ASTRONOMISCHE NACHRICHTEN, vol. 343, br. 1-2, str. - (Article; Proceedings Paper) Simic Sasa Z,Popovic Luka C,Kovacevic Andjelka B,Ilic Dragana J (2022) The broad emission line asymmetry in a low mass ratio of supermassive binary black holes on elliptical orbits, ASTRONOMISCHE NACHRICHTEN, vol. 343, br. 1-2, str. - (Article) Kovacevic Andjelka B,Ilic Dragana J,Popovic Luka C,Radovic Viktor M,Jankov Isidora,Yoon Ilsang,Caplar Neven,Cvorovic-Hajdinjak Iva,Simic Sasa Z (2021) On possible proxies of AGN light-curves cadence selection in future time domain surveys, MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, vol. 505, br. 4, str. 5012-5028 (Article) Popovic Luka C,Simic Sasa Z,Kovacevic Andjelka B,Ilic Dragana J (2021) Detecting subparsec supermassive binary black holes: Long-term monitoring perspective, MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, vol. 505, br. 4, str. 5192-5211 (Article) Popovic Luka C,Simic Sasa Z,Kovacevic Andjelka B,Ilic Dragana J (2021) Detecting subparsec supermassive binary black holes: Long-term monitoring perspective, MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, vol. 505, br. 4, str. 5192-5211 (Article) Kovacevic Andjelka B,Ilic Dragana J,Popovic Luka C,Radovic Viktor M,Jankov Isidora,Yoon Ilsang,Caplar Neven,Cvorovic-Hajdinjak Iva,Simic Sasa Z (2021) On possible proxies of AGN light-curves cadence selection in future time domain surveys, MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, vol. 505, br. 4, str. 5012-5028 (Article) Miladinovic Tatjana B,Simic Sasa Z,Danilovic Nebojsa,Jeremic Marija Z (2021) Influence of (0,1)* Laguerre-Gaussian Field Distribution on Tunneling Ionization Rate, JOURNAL OF EXPERIMENTAL AND THEORETICAL PHYSICS, vol. 132, br. 5, str. 753-765 (Article) Popovic Luka C,Afanasiev Viktor L,Moiseev AV,Smirnova AA,Simic Sasa Z,Savic Djordje V,Mediavilla EG,Fian C (2020) Spectroscopy and polarimetry of the gravitationally lensed quasar SDSS J1004+4112 with the 6m SAO RAS telescope, ASTRONOMY & ASTROPHYSICS, vol. 634, br. , str. - (Article) Kovacevic Andjelka B,Popovic Luka C,Simic Sasa Z,Ilic Dragana J (2019) The Optical Variability of Supermassive Black Hole Binary Candidate PG 1302-102: Periodicity and Perturbation in the Light Curve, ASTROPHYSICAL JOURNAL, vol. 871, br. 1, str. - (Article) Simic Sasa Z,Popovic Luka C (2016) Line shifts and sub-pc super-massive binary black holes, ASTROPHYSICS AND SPACE SCIENCE, vol. 361, br. 2, str. - (Article) Nina Aleksandra M,Simic Sasa Z,Sreckovic Vladimir A,Popovic Luka C (2015) Detection of short-term response of the low ionosphere on gamma ray bursts, GEOPHYSICAL RESEARCH LETTERS, vol. 42, br. 19, str. 8250-8261 (Article) Simic Sasa Z,Popovic Luka C (2014) Broad spectral line and continuum variabilities in QSO spectra induced by microlensing of diffusive massive substructure, ADVANCES IN SPACE RESEARCH, vol. 54, br. 7, str. 1439-1447 (Article) Popovic Luka C,Simic Sasa Z (2013) Spectrophotometric variability of quasars caused by lensing of diffuse massive substructure: consequences on flux anomaly and precise astrometric measurements, MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, vol. 432, br. 1, str. 848-856 (Article) Simic Sasa Z,Kovacevic Milan S (2013) Computer sound card as a tool to study of fast changing electromagnetic phenomena, COMPUTER APPLICATIONS IN ENGINEERING EDUCATION, vol. 21, br. 1, str. 158-163 (Article) Kovacevic Milan S,Savovic Svetislav M,Djordjevich Alexandar,Bajic Jovan S,Stupar Dragan Z,Kovacevic Milojko S,Simic Sasa Z (2013) Measurements of growth and decay of radiation induced attenuation during the irradiation and recovery of plastic optical fibres, OPTICS AND LASER TECHNOLOGY, vol. 47, br. , str. 148-151 (Article) Simic Sasa Z,Popovic Luka C (2012) Physical Parameters of the Relativistic Shock Waves in GRBs: the Case of 30 GRBs, INTERNATIONAL JOURNAL OF MODERN PHYSICS D, vol. 21, br. 3, str. - (Article) Simic Sasa Z,Popovic Luka C,Jovanovic Predrag P (2011) Influence of Microlensing on Spectral Anomalies of the Lensed Objects, BALTIC ASTRONOMY, vol. 20, br. 3, str. 481-485 (Article) Donnarumma I,...,Popovic Luka C,Simic Sasa Z,...,(broj koautora 37) (2011) The Remarkable Gamma-ray Activity in the Gravitationally Lensed Blazar PKS 1830-211, ASTROPHYSICAL JOURNAL LETTERS, vol. 736, br. 2, str. - (Article) Kovacevic Milan S,Simic Sasa Z (2010) Plastic optical fiber as a tool for experimenting with simple pendulum, REVISTA BRASILEIRA DE ENSINO DE FISICA, vol. 32, br. 3, str. - (Article) 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 (2009) Activities of the Group for Astrophysical Spectroscopy 2005-2008, PROCEEDINGS OF THE XV NATIONAL CONFERENCE OF ASTRONOMERS OF SERBIA, vol. 86, br. , str. 271-278 (Proceedings Paper) Jovanovic Predrag P,Popovic Luka C,Simic Sasa Z (2009) Influence of gravitational microlensing on broad absorption lines of QSOs: The case of the Fe K alpha line, NEW ASTRONOMY REVIEWS, vol. 53, br. 7-10, str. 156-161 (Proceedings Paper) Simic Sasa Z,Popovic Luka C (2008) Variability Of Grb Light Curve: Shock Wave Model Modification, 24TH SUMMER SCHOOL AND INTERNATIONAL SYMPOSIUM ON THE PHYSICS OF IONIZED GASES, CONTRIBUTED PAPERS, vol. , br. 84, str. 444-444 (Proceedings Paper) Simic Sasa Z,Popovic Luka C (2008) Variability of GRB light curve: Shock wave model modification - art. no. 012030, 24TH SUMMER SCHOOL AND INTERNATIONAL SYMPOSIUM ON THE PHYSICS OF IONIZED GASES, vol. 133, br. , str. 12030-12030 (Proceedings Paper) Simic Sasa Z,Popovic Luka C (2008) Investigation Of Element Abundances In The Surroundings Of Grb Afterglows, INTERNATIONAL JOURNAL OF MODERN PHYSICS D, vol. 17, br. 9, str. 1377-1382 (Proceedings Paper) Simic Sasa Z,Popovic Luka C (2007) Spectral lines in the afterglow of gamma ray bursts, SPECTRAL LINE SHAPES IN ASTROPHYSICS, vol. 938, br. , str. 88-93 (Proceedings Paper) Simic Sasa Z,Popovic Luka C,Andersen Michael I,Christensen Lise (2007) Mechanism of light curve variability in the gamma ray bursts, ASTROPHYSICS AND SPACE SCIENCE, vol. 309, br. 1-4, str. 173-177 (Article) Simic Sasa Z,Andersen Michael I,Popovic Luka C,Christensen Lise (2005) A model for temporal variability of the GRB light curve, Astrophysical Sources of High Energy Particles and Radiation, vol. 801, br. , str. 139-140 (Proceedings Paper) Simic Sasa Z (2004) A model of internal gamma-ray burst shocks, BALTIC ASTRONOMY, vol. 13, br. 2, str. 297-300 (Article) Popovic Luka C,Simic Sasa Z,Milovanovic Nenad D,Dimitrijevic Milan S (2001) Stark broadening effect in stellar atmospheres: NdII lines, ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, vol. 135, br. 1, str. 109-114 (Article)