1. Andary C, Doumbia B, Sauvan N, Olivier M, Garcia, M (2005) Anogeissus leiocarpus (DC.) Guill. and Perr. Record from PROTA4U. In: Jansen PCM, Cardon D (eds) PROTA (Plant Resources of Tropical Africa/Resources végétales de l’Afrique tropicale), Wageningen, Netherlands. http://www.prota4u.org/search.asp . Accessed 15 Nov 2015
2. Anyomi KA, Kahle H-P, Spiecker H, Adu-Bredu S (2007) Climatic influences on stem radial growth of Teak (Tectona grandis) in Ghana. Report reference number 079107s. International Tropical Timber Organization, Yokohama, p 20
3. Azihou FK, Glele KR, Ronald B, Brice S (2013) Distribution of tree species along a gallery forest–savanna gradient: patterns, overlaps and ecological thresholds. J Trop Ecol 29:25–37
4. Baillie MGL, Pilcher JR (1973) A simple cross dating program for tree-ring research. Tree-Ring Bull 33:7–14
5. Balas N, Nicholson SE, Klotter D (2007) The relationship of rainfall variability in West Central Africa to sea-surface temperature fluctuations. Int J Climatol 27:1335–1349