[1]
J. Viljoen, Q. P. Campbell, M. le Roux, and J. Hoffman, “The qualification of coal degradation with the aid of micro-focus computed tomography”, S. Afr. J. Sci., vol. 111, no. 9/10, p. 10, Sep. 2015, doi: 10.17159/sajs.2015/20140025.