@ARTICLE{
author={Zivic Nenad,Andjelkovic Igor,Ozden Tolga,Djekic Milovan,Castronova Edward},
year={2017},
title={Results of a massive experiment on virtual currency endowments and money demand},
journal={PLOS ONE},
volume={12},
number={10},
pages={-},
document_type={Article},
} 

@ARTICLE{
author={Milosevic Milos,Zivic Nenad,Andjelkovic Igor},
year={2017},
title={Early churn prediction with personalized targeting in mobile social games},
journal={EXPERT SYSTEMS WITH APPLICATIONS},
volume={83},
number={},
pages={326-332},
document_type={Article},
}