Geml J, Laursen GA, Timling I, et al. Molecular phylogenetic biodiversity assessment of arctic and boreal ectomycorrhizal Lactarius Pers. (Russulales; Basidiomycota) in Alaska, based on soil and sporocarp DNA. Mol Ecol. 2009;18(10):2213-27. doi:10.1111/j.1365-294X.2009.04192.x