ZETTUR, I.; KULLMAN, B. Urnula hiemalis – a rare and interesting species of the Pezizales from Estonia. Folia Cryptogamica Estonica, [S. l.], v. 48, p. 149–152, 2011. Disponível em: https://ojs.utlib.ee/index.php/FCE/article/view/13643. Acesso em: 29 mar. 2024.