N. V. Luong, R. Tateishi, N. T. Hoan, T. T. Tu, and L. M. Son, “An analysis of forest biomass changes using geospatial tools and ground survey data: a case study in Yok Don national park, Central Highlands of Vietnam”, Vietnam J. Earth Sci., vol. 36, no. 4, pp. 439–450, Dec. 2014.