1. A subsurface sedimentologica investigation of parts of the Ecca and Beaufort Groups in the northeastern Karoo Basin;Cadle,1974
2. Sedimentary controls on coal distribution in the northwestern Highveld Coalfield;Cadle,1982
3. Coal depositional systems of the Transvaal coalfields: their influence on coal distribution and quality;Cadle,1986
4. Anastomosing river deposits: palaeoenvironmental control of coal quality and distribution, northern Karoo Basin;Cairncross;Trans. Geol. Soc. S. Afr.,1980
5. Depositional environments of the Permian Vryheid Formation in the east Witbank coalfield, South Africa: A framework for coal seam stratigraphy, occurence and distribution;Cairncross,1986