TY - JOUR L1 - http://journals.pan.pl/Content/106159/PDF/JPPR_48(3)_02_Smatas.pdf L2 - http://journals.pan.pl/Content/106159 PY - 2008 IS - No 3 DO - 10.2478/v10045-008-0036-3 A1 - Semaškienė, Roma A1 - Smatas, Remigijus A1 - Kestutis Tamosiunas A1 - Dabkevicius, Zenonas A1 - Lazauskas, Sigitas PB - Committee of Plant Protection PAS PB - Institute of Plant Protection – National Research Institute VL - vol. 48 DA - 2008 T1 - Trends in Aphid Occurrence in Spring Barley in 1976-2007 UR - http://journals.pan.pl/dlibra/publication/edition/106159 T2 - Journal of Plant Protection Research ER -