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- [4] The classification of coals. TRANSACTIONS OF THE AMERICAN INSTITUTE OF MINING AND METALLURGICAL ENGINEERS, 1905, 36 : 324 - 340
- [9] On Frequent Elements in Coals. Erdoel und Kohle, Erdgas, Petrochemie vereinigt mit Brennstoff-Chemie, 1982, 35 (04): : 163 - 170
- [10] WASHABILITY OF AUSTRALIAN COALS. Proceedings - Australasian Institute of Mining and Metallurgy, 1979, (270): : 47 - 53