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APA Citation
ERTZ, D., SANDERSON, N., ŁUBEK, A., & KUKWA, M. (n.d.). two new species of Arthoniaceae from old-growth European forests, Arthonia thoriana and Inoderma sorediatum, and a new genus for Schismatomma niveum. Lichenologist, 50, 161–172. http://access.bl.uk/ark:/81055/vdc_100057900976.0x000048