Lõhmus, Piret, Liis Marmor, Inga Jüriado, Ave Suija, Ede Oja, Polina Degtjarenko, and Tiina Randlane. 2019. “Red List of Estonian Lichens: Revision in 2019”. Folia Cryptogamica Estonica 56 (July):63-76. https://doi.org/10.12697/fce.2019.56.07.