Tarasova, V., Androsova, V., Sonina, A. and Ahti, T. (2015) “The lichens from the City of Petrozavodsk in the Herbarium of the Botanical Museum, University of Helsinki”, Folia Cryptogamica Estonica, 52, pp. 41-50. doi: 10.12697/fce.2015.52.06.