@ARTICLE{
author={Jovanovic Olga P,Radulovic Niko S,Stojanovic Gordana S,Palic Radosav M,Zlatkovic Bojan K,Gudzic Branislav T},
year={2009},
title={Chemical Composition of the Essential Oil of Centaurium erythraea Rafn (Gentianaceae) From Serbia},
journal={JOURNAL OF ESSENTIAL OIL RESEARCH},
volume={21},
number={4},
pages={317-322},
document_type={Article},
} 

@ARTICLE{
author={Gudzic Branislav T,Smelcerovic Andrija A,Djordjevic Sinisa M,Mimica-Dukic Neda M,Ristic Mihailo S},
year={2007},
title={Essential oil composition of Hypericum hirsutum L.},
journal={FLAVOUR AND FRAGRANCE JOURNAL},
volume={22},
number={1},
pages={42-43},
document_type={Article},
} 

@ARTICLE{
author={Gudzic Branislav T,Djokovic Dejan D,Vajs Vlatka E,Palic Radosav M,Stojanovic Gordana S},
year={2002},
title={Composition and antimicrobial activity of the essential oil of Hypericum maculatum Crantz},
journal={FLAVOUR AND FRAGRANCE JOURNAL},
volume={17},
number={5},
pages={392-394},
document_type={Article},
} 

@ARTICLE{
author={Gudzic Branislav T,Djordjevic Sinisa M,Palic Radosav M,Stojanovic Gordana S},
year={2001},
title={Essential oils of Hypericum olympicum L. and Hypericum perforatum L.},
journal={FLAVOUR AND FRAGRANCE JOURNAL},
volume={16},
number={3},
pages={201-203},
document_type={Article},
}