"Straka, Pavel" . . "Sulfur forms in organic substance of coal maceral fractions."@en . "CZ - \u010Cesk\u00E1 republika" . . . "Zubkov\u00E1, Helena" . . "3"^^ . . . . "1211-1929" . "sulfur; - coal"@en . . "3"^^ . "0"^^ . "0"^^ . . "Sulfur forms in organic substance of coal maceral fractions." . . . "5;7" . "697863" . "RIV/67985891:_____/01:08010007!RIV/2003/AV0/A08003/N" . "2"^^ . "Chemical wet methods and X-ray photoelectron spectroscopy were used to investigation of the organic sulfur forms in coal. Thiofenic sulfur dominates not only in coal with higher aromaticity, but also in the case of lower aromaticity of coal. No thiols were found." . "Sulfur forms in organic substance of coal maceral fractions."@en . "N/A" . . "RIV/67985891:_____/01:08010007" . . "Chemical wet methods and X-ray photoelectron spectroscopy were used to investigation of the organic sulfur forms in coal. Thiofenic sulfur dominates not only in coal with higher aromaticity, but also in the case of lower aromaticity of coal. No thiols were found."@en . . . . "Acta Montana. Series B - Fuel, carbon, mineral processing" . . "Sulfur forms in organic substance of coal maceral fractions." . "11(120)" . "[5AFB3F4FE659]" . "Marinov, S." . "P(IAA2046902), Z(AV0Z3046908)" .