@ARTICLE{
author={Gutman Ivan,Milosavljevic Svetlana R,Furtula Boris,Cmiljanovic Natasa A},
year={2005},
title={Relation between electron and energy contents of hexagons in pericondensed benzenoid hydrocarbons},
journal={INDIAN JOURNAL OF CHEMISTRY SECTION A-INORGANIC BIO-INORGANIC PHYSICAL THEORETICAL & ANALYTICAL CHEMISTRY},
volume={44},
number={1},
pages={13-17},
document_type={Article},
} 

@ARTICLE{
author={Gutman Ivan,Stevanovic Dragan P,Radenkovic Slavko,Milosavljevic Svetlana R,Cmiljanovic Natasa A},
year={2004},
title={Dependence of the total pi-electron energy on a large number of non-bonding molecular orbitals},
journal={JOURNAL OF THE SERBIAN CHEMICAL SOCIETY},
volume={69},
number={10},
pages={777-782},
document_type={Article},
} 

@ARTICLE{
author={Gutman Ivan,Cmiljanovic Natasa A,Milosavljevic Svetlana R,Radenkovic Slavko},
year={2004},
title={Dependence of total pi-electron energy on the number of non-bonding molecular orbitals},
journal={MONATSHEFTE FUR CHEMIE},
volume={135},
number={7},
pages={765-772},
document_type={Article},
} 

@ARTICLE{
author={Gutman Ivan,Cmiljanovic Natasa A,Milosavljevic Svetlana R,Radenkovic Slavko},
year={2004},
title={Effect of non-bonding molecular orbitals on total pi-electron energy},
journal={CHEMICAL PHYSICS LETTERS},
volume={383},
number={1-2},
pages={171-175},
document_type={Article},
} 

@ARTICLE{
author={Gutman Ivan,Vidovic Dusica,Cmiljanovic Natasa A,Milosavljevic Svetlana R,Radenkovic Slavko},
year={2003},
title={Graph energy - A useful molecular structure-descriptor},
journal={INDIAN JOURNAL OF CHEMISTRY SECTION A-INORGANIC BIO-INORGANIC PHYSICAL THEORETICAL & ANALYTICAL CHEMISTRY},
volume={42},
number={6},
pages={1309-1311},
document_type={Article},
}