TY - JOUR L1 - http://journals.pan.pl/Content/88223/PDF/JPPR_50(3)_27_Tratwal.pdf L2 - http://journals.pan.pl/Content/88223 PY - 2010 IS - No 3 DO - 10.2478/v10045-010-0068-3 A1 - Tratwal, Anna A1 - Walczak, Felicyta PB - Committee of Plant Protection PAS PB - Institute of Plant Protection – National Research Institute VL - vol. 50 DA - 2010 T1 - Powdery Mildew (Blumeria Gramins) and Pest Occurrence Reduction in Spring Cereal Mixtures UR - http://journals.pan.pl/dlibra/publication/edition/88223 T2 - Journal of Plant Protection Research ER -