Dendroecological research in beech (Fagus sylvatica L.) stands affected by abnormal decline phenomena from Dragomirna plateau, Suceava county, Romania Journal title: Advances in Agriculture & Botanics - International Journal of the Bioflux Society Authors: Cătălin-Constantin Roibu, Alexei Savin, Bogdan-Mihai Negrea, Florin Barbir Subject(s):