The age of supergene manganese deposits in Katanga and its implications for the Neogene evolution of the African Great Lakes Region,
De Putter, T., G. Ruffet, J. Yans, F. Mees (2015) (2015),
Ore Geology Reviews, 71 p. 350–362,
10.1016/j.oregeorev.2015.06.015.