Saar, Irja, Jane Oja, Kadri Põldmaa, Kadri Pärtel, Irma Zettur, and Urmas Kõljalg. “Red List of Estonian Fungi – 2019 Update”. Folia Cryptogamica Estonica 560 (September 18, 2019): 117-126. Accessed February 24, 2020. http://ojs.utlib.ee/index.php/FCE/article/view/fce.2019.56.12.