Istomina, N. B., Likhacheva, O. V., Stepanchikova, I. S., Kuznetsova, E. S., & Himelbrant, D. E. (2018). New and rare lichens and allied fungi from the Pskov Region, Russia. Folia Cryptogamica Estonica, 55, 21–31. https://doi.org/10.12697/fce.2018.55.04