Marmor, L. and Randlane, T. (2007) “Effects of road traffic on bark pH and epiphytic lichens in Tallinn”,
Folia Cryptogamica Estonica
, 43, pp. 23–37. Available at: https://ojs.utlib.ee/index.php/FCE/article/view/13752 (Accessed: 10 April 2025).