@ARTICLE{
author={Vukicevic Damir,Sedlar Jelena,Stevanovic Dragan P},
year={2017},
title={Comparing Zagreb Indices for Almost All Graphs},
journal={MATCH-COMMUNICATIONS IN MATHEMATICAL AND IN COMPUTER CHEMISTRY},
volume={78},
number={2},
pages={323-336},
document_type={Article},
} 

@ARTICLE{
author={Sedlar Jelena,Stevanovic Dragan P,Vasilyev Alexander},
year={2015},
title={On the inverse sum indeg index},
journal={DISCRETE APPLIED MATHEMATICS},
volume={184},
number={},
pages={202-212},
document_type={Article},
}