Structural, physiognomic and above-ground biomass variation in savanna–forest transition zones on three continents: how different are co-occurring savanna and forest formations? - Veenendaal, Elmar M; Torello-Raventos, Mireia; Feldpausch, Ted R; Domingues, Tomas Ferreira; Gerard, F; Schrodt, F; Saiz, G; Quesada, C. A; Djagbletey, G; Ford, A; Kemp, J; Marimon, Beatriz Schwantes; et al. (Biogeosciences, 2015)