M. Hall, A. W. Al-Khulaidi, A. G. Miller, P. Scholte, and A. H. Al-Qadasi, “ARABIA’S LAST FORESTS UNDER THREAT: PLANT BIODIVERSITY AND CONSERVATION IN THE VALLEY FOREST OF JABAL BURA (YEMEN)”, Edinburgh J. Bot., vol. 65, no. 1, pp. 113–135, Mar. 2008, doi: 10.1017/S0960428608004976.