DITMAROVÁ, Ľubica et al. Effects of drought on selected physiological parameters of young beech trees under stress conditions. In Ekológia : international Journal for Ecological Problems of the Biosphere. ISSN 1335-342X, 2006, vol. 25, no. 1, p. 1-11. VEGA 2/4159/04 ; 1/9207/02 ; 1/0629/03 ; 2/4167/24. SCOPUS.