@ARTICLE{
author={Demjanova E,Macak Milan,Tyr Stefan,Djalovic Ivica G,Zak S,Smatana Jozef},
year={2008},
title={Weed populations in maize as affected by crop rotation and primary soil tillage},
journal={JOURNAL OF PLANT DISEASES AND PROTECTION},
volume={},
number={},
pages={529-533},
document_type={Article},
} 

@ARTICLE{
author={Macak Milan,Zak S,Djalovic Ivica G,Szombathova N},
year={2008},
title={The influence of an ecological and a low input system on weed density, weed diversity and weed competition in spring barley},
journal={JOURNAL OF PLANT DISEASES AND PROTECTION},
volume={},
number={},
pages={425-430},
document_type={Article},
}