Hristovski, S. .; Melovski, L.; Šušlevska, M.; Grupče, L. Belowground Phytomass and Production in the Beech Ecosystem Calamintho Grandiflorae-Fagetum in Mavrovo National Park. V. Belowground Production in the Tree and Shrub Layers. MJEE 2009, 12, 9-20.