Stepanchikova, I.S., Andreev, M.P., Himelbrant, D.E., Motiejūnaitė, J., Schiefelbein, U., Konoreva, L.A. and Ahti, T. 2017. The lichens of Bolshoy Tuters Island (Tytärsaari), Leningrad Region, Russia. Folia Cryptogamica Estonica. 54, (Sep. 2017), 95–116. DOI:https://doi.org/10.12697/fce.2017.54.14.