Viner, Ilya. “Polyporoid and Corticioid Basidiomycetes in Pristine Forests of the Pechora-Ilych Nature Reserve, Komi Republic, Russia”. Folia Cryptogamica Estonica 52 (August 19, 2015): 81-88. Accessed May 22, 2019. http://ojs.utlib.ee/index.php/FCE/article/view/fce.2015.52.10.