Young, Truman P.; Mary M. Peacock (March 1992). "Giant senecios and alpine vegetation of Mount Kenya". Journal of Ecology. 80 (1). JSTOR: 141–148. doi:10.2307/2261071. JSTOR2261071.
Young, Truman P.; Mary M. Peacock (March 1992). "Giant senecios and alpine vegetation of Mount Kenya". Journal of Ecology. 80 (1). JSTOR: 141–148. doi:10.2307/2261071. JSTOR2261071.