@ARTICLE{Wójtowicz_Marek_Effectiveness_2009, author={Wójtowicz, Marek and Wójtowicz, Andrzej}, volume={vol. 49}, number={No 2}, journal={Journal of Plant Protection Research}, howpublished={online}, year={2009}, publisher={Committee of Plant Protection PAS}, publisher={Institute of Plant Protection – National Research Institute}, title={Effectiveness of Chemical Protection against Weeds Applied to Poppy (Papaver Somniferum L.)}, URL={http://www.journals.pan.pl/Content/106196/PDF/JPPR_49(2)_14_Wojtowicz.pdf}, doi={10.2478/v10045-009-0031-3}, }