High aboveground carbon stock of African tropical montane forests - Cuní-Sanchez, A.; Sullivan, M.J.P.; Platts, P.J.; Lewis, S.L.; Marchant, R.; Imani, G.; Hubau, W.; Abiem, I.; Adhikari, H.; Albrecht, T.; Altman, J.; Amani, C.A.; et al. (Springer, 2021)