@ARTICLE{
author={Premovic Pavle I,Tonsa IR,Djordjevic Dragan M,Premovic Miroslav P},
year={2000},
title={Incorporation of vanadyl porphyrins into kerogen structures during catagenesis},
journal={FUEL},
volume={79},
number={9},
pages={1089-1094},
document_type={Article},
} 

@ARTICLE{
author={Premovic Pavle I,Nikolic Goran S,Premovic Miroslav P,Tonsa Ivana R},
year={2000},
title={Fourier transform infrared and electron spin resonance examinations of kerogen from the Gunflint stromatolitic cherts (Middle Precambrian, Ontario, Canada) and related materials},
journal={JOURNAL OF THE SERBIAN CHEMICAL SOCIETY},
volume={65},
number={4},
pages={229-244},
document_type={Article},
} 

@ARTICLE{
author={Premovic Pavle I,Nikolic Nikola D,Tonsa IR,Pavlovic Mirjana S,Premovic Miroslav P,Dulanovic Dejan T},
year={2000},
title={Copper and copper(II) porphyrins of the Cretaceous-Tertiary boundary at Stevns Klint (Denmark)},
journal={EARTH AND PLANETARY SCIENCE LETTERS},
volume={177},
number={1-2},
pages={105-118},
document_type={Article},
}