Wendorff, M., and A. Świąder. “Lithostratigraphic Classification of the Tsodilo Hills Group: A Palaeo- to Mesoproterozoic Metasedimentary Succession in NW Botswana”. Geology, Geophysics and Environment, vol. 45, no. 4, Jan. 2020, p. 305, doi:10.7494/geol.2019.45.4.305.