TY - JOUR AU - Karlsson, B. AU - Swedjemark, G. PY - 2006 DA - 2006// TI - Genotypic variation in natural infection frequency of Heterobasidion spp. in a Picea abies clone trial in southern Sweden JO - Scand J. Forest Research VL - 21 UR - https://doi.org/10.1080/02827580500529969 DO - 10.1080/02827580500529969 ID - Karlsson2006 ER -