Showing papers by "Stanislav V. Vassilev published in 1998"
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TL;DR: In this paper, the mineralogy and chemical composition of coal and coal-ash samples from six Bulgarian deposits, namely Maritza West (MW), Sofia (S), Bobov Dol (BD), Pernik (P) and Balkan (B), were studied and a model for comparative characterization of their composition was done.
26 citations
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4 citations