@ARTICLE{Parvez_Rizvi_Age_2009, author={Parvez Rizvi and Arshad Ali and Samreen Khalid}, 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={Age and Stage-Specific Life-Table of Cabbage Butterfly, Pieris Brassicae L. (Lepidoptera: Pieridae) on Various Cole Crops}, URL={http://journals.pan.pl/Content/106190/PDF/JPPR_49(2)_03_Rizvi.pdf}, doi={10.2478/v10045-009-0020-6}, }