Himelbrant, D., J. Motiejūnaitė, J. Pykälä, U. Schiefelbein, and I. Stepanchikova. “New Records of Lichens and Allied Fungi from the Leningrad Region, Russia. IV”. Folia Cryptogamica Estonica, Vol. 50, 1, pp. 23-31, doi:10.12697/fce.2013.50.04.