Aphanomyces astaci PsI-genotype isolates from different Finnish signal crayfish stocks show variation in their virulence but still kill fastJ. Jussila, H. Kokko, R. Kortet and J. MakkonenKnowl. Managt. Aquatic Ecosyst., 411 (2013) 10DOI: https://doi.org/10.1051/kmae/2013077