G. B. Kiviets, J. J. Gurney, S. H. Richardson, C. Harris, H. J. Milledge, and W. R. Taylor, “A detailed geochemical study of a suite of.diamondiferous eclogite xenoliths from the Kaalvallei kimberlite, South Africa”, IKC abstracts, vol. 6, no. 1, pp. 279–281, Sep. 1995.