Grab, Stefan W.; Gatebe, Charles K.; Kinyua, Antony M. (2004). "Ground Thermal Profiles from Mount Kenya, East Africa". Geografiska Annaler: Series A, Physical Geography. 86 (2): 131–141. doi:10.1111/j.0435-3676.2004.00219.x. ISSN0435-3676. JSTOR3566103.
Grab, Stefan W.; Gatebe, Charles K.; Kinyua, Antony M. (2004). "Ground Thermal Profiles from Mount Kenya, East Africa". Geografiska Annaler: Series A, Physical Geography. 86 (2): 131–141. doi:10.1111/j.0435-3676.2004.00219.x. ISSN0435-3676. JSTOR3566103.
Grab, Stefan W.; Gatebe, Charles K.; Kinyua, Antony M. (2004). "Ground Thermal Profiles from Mount Kenya, East Africa". Geografiska Annaler: Series A, Physical Geography. 86 (2): 131–141. doi:10.1111/j.0435-3676.2004.00219.x. ISSN0435-3676. JSTOR3566103.