B.  Guzow-Krzemi?ska, ?ubek, A., Malí?ek, J., Tønsberg, T., Oset, M., and Kukwa, M., ?Lecanora stanislai, a new, sterile, usnic acid containing lichen species from Eurasia and North America?, Phytotaxa, vol. 329, no. 3, p. 201, 2017.