@ARTICLE{
author={Nikolic Vlastimir D,Kaljevic Jelena,Jovic Srdjan,Petkovic Dalibor,Milovancevic Milos D,Dimitrov Ljubomir,Dachkinov Pancho},
year={2018},
title={Survey of quality models of e-learning systems},
journal={PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS},
volume={511},
number={},
pages={324-330},
document_type={Article},
}