F. . Gonçalves, J. J. . Tchamba, and D. J. . Goyder, “Schistostephium crataegifolium (Compositae: Anthemideae), a new generic record for Angola”, ABC, vol. 46, no. 1, Mar. 2016, Accessed: Jun. 04, 2026. [Online]. Available: https://www.abcjournal.org/index.php/abc/article/view/148