AKBARIAN, Mohammad Reza. Effects of elevational gradient on leaf and stomatal morphology of Caucasian alder (Alnus subcordata) in the Hyrcanian forest, Iran. In Folia oecologica. - Zvolen : Institute of Forest Ecology SAS, 2011. ISSN 1336-5266, 2011, vol. 38, no. 1, s. 1-7.