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![Stanislav VASSILEV | Professor | Prof, PhD, DSc | Bulgarian Academy of Sciences, Sofia | BAS | Institute of Mineralogy and Crystallography, Stanislav VASSILEV | Professor | Prof, PhD, DSc | Bulgarian Academy of Sciences, Sofia | BAS | Institute of Mineralogy and Crystallography,](https://www.researchgate.net/profile/Stanislav-Vassilev/publication/237281972/figure/tbl1/AS:652199411580966@1532507865880/Common-characteristics-of-6-feed-coal-blends-used-in-4-Spanish-TPSs-wt_Q320.jpg)
Stanislav VASSILEV | Professor | Prof, PhD, DSc | Bulgarian Academy of Sciences, Sofia | BAS | Institute of Mineralogy and Crystallography,
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