Kondratyuk, Sergij Y., John A. Elix, Irina A. Galanina, Lidia S. Yakovchenko, Ingvar Kärnefelt, and Arne Thell. 2011. “Four New Caloplaca Species (Teloschistaceae, Ascomycotina)”. Folia Cryptogamica Estonica 48 (October), 17-23. https://ojs.utlib.ee/index.php/FCE/article/view/13629.