Bekker A., Karhu J.A, Eriksson A., Kaufman A.J.  2002.  Chemostratigraphy of Paleoproterozoic carbonate successions of the Wyoming Craton: tectonic forcing of biogeochemical change? Precambrian Research. 120(3-4):279-325.

Young G.M, Long D.GF, Fedo C.M, Nesbitt H.W.  2001.  Paleoproterozoic Huronian basin: product of a Wilson cycle punctuarted by glaciations and a meteorite impact. Sedimentary Geology. 141-142:233-254.