Aguín, O., Mansilla, J. and Sainz, M. 2004. Intraspecific Variation in Armillaria Species from Shrubs and Trees in Northwestern Spain. Phytopathologia Mediterranea. 43, 2 (Aug. 2004), 299–304. DOI:https://doi.org/10.14601/Phytopathol_Mediterr-1747.