@ARTICLE{
author={Dajic-Stevanovic Zora P,Nastovski Tatjana Lj,Ristic Mihailo S,Radanovic Dragoja S},
year={2009},
title={Variability of Essential Oil Composition of Cultivated Feverfew (Tanacetum parthenium (L.) Schultz Bip.) Populations},
journal={JOURNAL OF ESSENTIAL OIL RESEARCH},
volume={21},
number={4},
pages={292-294},
document_type={Article},
} 

@ARTICLE{
author={Ristic Mihailo S,Krivokuca-Djokic Dragana,Radanovic Dragoja S,Nastovski Tatjana Lj},
year={2007},
title={Essential oil of Arnica montana and Arnica chamissonis},
journal={HEMIJSKA INDUSTRIJA},
volume={61},
number={5},
pages={272-277},
document_type={Article},
}