MARMOR, L.; RANDLANE, T. Effects of road traffic on bark pH and epiphytic lichens in Tallinn. Folia Cryptogamica Estonica, [S. l.], v. 43, p. 23–37, 2007. Disponível em: https://ojs.utlib.ee/index.php/FCE/article/view/13752. Acesso em: 10 apr. 2025.