by Potgieter-Vermaak, S., Maledi, N., Wagner, N., Van Heerden, J. H. P., Van Grieken, R., Potgieter, J. H.
Published in Journal of Raman spectroscopy (01.02.2011)

by Wagner, N.J., Matjie, R.H., Slaghuis, J.H., van Heerden, J.H.P.
Published in Fuel (Guildford) (01.05.2008)

by Aldrich, C., Jemwa, G. T., van Dyk, J. C., Keyser, M. J., van Heerden, J. H. P.
Published in International journal of coal preparation and utilization (01.11.2010)

by van Dyk, J.C., Waanders, F.B., van Heerden, J.H.P.
Published in Fuel (Guildford) (01.09.2008)

by van Dyk, J.C., Baxter, L.L., van Heerden, J.H.P., Coetzer, R.L.J.
Published in Fuel (Guildford) (01.10.2005)

by SAGHAFI, A, PINETOWN, K. L, GROBLER, P. G, VAN HEERDEN, J. H. P
Published in International journal of coal geology (07.01.2008)

by Motaung, S. R., Mangena, S. J., de Korte, G. J., McCrindle, R. I., van Heerden, J. H. P.
Published in Coal preparation (New York, N.Y.) (01.10.2007)

by Heerden, J. H. P, Tonder, J. J
Published in The South African Journal of economics (01.03.1987)