VOLCANISM AS AN IMPORTANT FACTOR IN THE FORMATION OF THE MATERIAL-PETROGRAPHIC COMPOSITION OF COAL by Іванова, А.В., Зайцева, Л.Б.

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TONSTEINS AND THEIR ROLE IN THE FORMATION OF THE PETROGRAPHIC COMPOSITION OF COALS by ІВАНОВА, А.В., ЗАЙЦЕВА, Л.Б.

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DISTRIBUTION REGULARITIES OF PETROGRAPHIC TYPES OF BROWN COAL AND CHANGES IN THE CHARACTERISTICS OF THE COAL BEARING CAPACITY IN THE DNIEPER BASIN by Іванова, А.В., Зайцева, Л.Б., Гаврильцев, В.Б.

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FORMATION CONDITIONS OF THE PALEOGENE COALS IN THE SULA-UDAISKE DEPOSIT OF THE DNIEPER-DONETS COAL-BEARING AREA by ЗАЙЦЕВА, Л.Б., ІВАНОВА, А.В., ГАВРИЛЬЦЕВ, В.Б.

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INFLUENCE OF GEOTECTONIC CONDITIONS ON THE COAL-BEARING FORMATIONS OF LVOV AND PRE-DOBROGEA DEPRESSIONS by Ivanova, A.V.

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