“Analysis of phenophases that control in-situ establishment of Ocotea usambarensis Engl. in the southern slopes of Mt. Kenya Forest”, Int. J. Emerg. Trends Sci. Technol., vol. 5, no. 07, pp. 6674–6687, Jul. 2018, Accessed: Oct. 24, 2026. [Online]. Available: https://www.ijetst.in/index.php/ijetst/article/view/1270