@ARTICLE{
author={Popovic Luka C,Jovanovic Predrag P,Mediavilla EG,Zakharov Alexander F,Abajas C,Munoz JA,Chartas G},
year={2006},
title={A study of the correlation between the amplification of the FeK alpha line and the x-ray continuum of quasars due to microlensing},
journal={ASTROPHYSICAL JOURNAL},
volume={637},
number={2},
pages={620-630},
document_type={Article},
} 

@ARTICLE{
author={Popovic Luka C,Chartas G},
year={2005},
title={The influence of gravitational lensing on the spectra of lensed quasi-stellar objects},
journal={MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY},
volume={357},
number={1},
pages={135-144},
document_type={Article},
}