Oberthür T; et al. (2002). "Precise U–Pb mineral ages, Rb–Sr and Sm–Nd systematics for the Great Dyke, Zimbabwe—constraints on late Archean events in the Zimbabwe craton and Limpopo belt". Precambrian Research. 113 (3–4): 293–306. Bibcode:2002PreR..113..293O. doi:10.1016/S0301-9268(01)00215-7.
Oberthür T; et al. (2002). "Precise U–Pb mineral ages, Rb–Sr and Sm–Nd systematics for the Great Dyke, Zimbabwe—constraints on late Archean events in the Zimbabwe craton and Limpopo belt". Precambrian Research. 113 (3–4): 293–306. Bibcode:2002PreR..113..293O. doi:10.1016/S0301-9268(01)00215-7.