@ARTICLE{
author={Stevic Milorad Pantelija,Milosavljevic Branko,Perisic Branko Rade},
year={2015},
title={Enhancing the management of unstructured data in e-learning systems using MongoDB},
journal={PROGRAM-ELECTRONIC LIBRARY AND INFORMATION SYSTEMS},
volume={49},
number={1},
pages={91-114},
document_type={Article},
}