Authors: Mastalerz, M Gurba, LW

Citation: M. Mastalerz et Lw. Gurba, Determination of nitrogen in coal macerals using electron microprobe technique - experimental procedure, INT J COAL, 47(1), 2001, pp. 23-30

Authors: Gurba, LW Weber, CR

Citation: Lw. Gurba et Cr. Weber, Effects of igneous intrusions on coalbed methane potential, Gunnedah Basin, Australia, INT J COAL, 46(2-4), 2001, pp. 113-131

Authors: Gurba, LW Ward, CR

Citation: Lw. Gurba et Cr. Ward, Elemental composition of coal macerals in relation to vitrinite reflectance, Gunnedah Basin, Australia, as determined by electron microprobe analysis, INT J COAL, 44(2), 2000, pp. 127-147

Authors: Ward, CR Spears, DA Booth, CA Staton, I Gurba, LW

Citation: Cr. Ward et al., Mineral matter and trace elements in coals of the Gunnedah Basin, New South Wales, Australia, INT J COAL, 40(4), 1999, pp. 281-308

Authors: Ward, CR Gurba, LW

Citation: Cr. Ward et Lw. Gurba, Chemical composition of macerals in bituminous coals of the Gunnedah Basin, Australia, using electron microprobe analysis techniques, INT J COAL, 39(4), 1999, pp. 279-300