@ARTICLE{
author={Rafanelli Piero,Ciroi Stefano,Cracco V,Di Mille F,Ilic Dragana J,La Mura Giovanni,Popovic Luka C},
year={2014},
title={Are Boltzmann plots of hydrogen Balmer lines a tool for identifying a subclass of S1 AGN?},
journal={ADVANCES IN SPACE RESEARCH},
volume={54},
number={7},
pages={1362-1374},
document_type={Article},
} 

@ARTICLE{
author={La Mura Giovanni,Ciroi Stefano,Cracco V,Ilic Dragana J,Popovic Luka C,Rafanelli Piero},
year={2011},
title={Optical Emission Lines and the X-Ray Properties of Type 1 Seyfert Galaxies},
journal={BALTIC ASTRONOMY},
volume={20},
number={3},
pages={442-447},
document_type={Article},
}