MÉTHANE DE CHARBON (GISEMENTS)
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BTHOUILLE (GISEMENTS)
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UDC553.94*99
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Descriptor GERKOHLEFLÖZ-METHAN (LAGERSTÄTTEN)
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Descriptor ENGCOALBED METHANE (MINERAL DEPOSITS)
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Descriptor FREMÉTHANE DE CHARBON (GISEMENTS)
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Variant GERMETHAN/KOHLEFLÖZ-METHAN (LAGERSTÄTTEN)
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Variant ENGMETHANE/COALBED METHANE (MINERAL DEPOSITS)
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Variant FRECHARBON/MÉTHANE DE CHARBON (GISEMENTS)