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This work has been carried out under the Cooperative Agreement between the Hungarian Academy of Sciences and the Consejo Superior de Investigaciones Científicas.
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Grimalt, J., Albaigés, J., Alexander, G. et al. Predominance of even carbon-numbered n-alkanes in coal seam samples of Nograd Basin (Hungary). Naturwissenschaften 73, 729–731 (1986). https://doi.org/10.1007/BF00399242
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DOI: https://doi.org/10.1007/BF00399242