Linards Sisenis (2019). COMPARISON OF THE ABOVEGROUND BIOMASS OF BIRCH TREES BETWEEN NATURAL STANDS AND PLANTATIONS WITH LOW INITIAL DENSITY. SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 19th International Multidisciplinary Scientific GeoConference SGEM2019, Water Resources. Forest, Marine and Ocean Ecosystems, 657-664. https://doi.org/10.5593/sgem2019/3.2/s14.085