@ARTICLE{Ray_Puja_Impact_2009, author={Ray, Puja and Sushilkumar and Pandey, Akhilesh Kumar}, volume={vol. 49}, number={No 1}, 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={Impact Evaluation of Neochetina SPP. On Different Growth Stages of Waterhyacinth}, URL={http://www.czasopisma.pan.pl/Content/106180/PDF/JPPR_49(1)_02_Ray.pdf}, doi={10.2478/v10045-009-0002-8}, }