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The Scientific World Journal
Volume 2014 (2014), Article ID 234204, 12 pages
http://dx.doi.org/10.1155/2014/234204
Research Article

Chemometric Study of Trace Elements in Hard Coals of the Upper Silesian Coal Basin, Poland

1Department of Energy Saving and Air Protection, Central Mining Institute, Plac Gwarków 1, 40-166 Katowice, Poland
2Department of Solid Fuels Quality Assessment, Central Mining Institute, Plac Gwarków 1, 40-166 Katowice, Poland
3Central Mining Institute, Experimental Mine “Barbara”, Podleska Street 72, 43-190 Mikołów, Poland
4Department of Geology and Geophysics, Central Mining Institute, Plac Gwarków 1, 40-166 Katowice, Poland

Received 22 January 2014; Revised 9 April 2014; Accepted 23 April 2014; Published 22 May 2014

Academic Editor: Dušanka Milojković-Opsenica

Copyright © 2014 Adam Smoliński et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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