1. Saving money with coal geophysics;Abshier,1979
2. Correlation of high resolution density log counts and ash content of coal in the Goulburn Valley, N.S.W.;Agostini;Bull. Aust. Soc. Explor. Geophys.,1977
3. An advanced and integrated approach to coal formation evaluation;Ahmed,1991
4. An interdisciplinary geoscientific approach to modeling coal-quality variations in a Texas lignite deposit: implications for mine planning and use;Alcock,1986
5. Learning to produce coalbed methane;Ayoub;Oilfield Rev.,1991