@ARTICLE{Magda_Roman_Regional_2014, author={Magda, Roman and Bogacz, Paweł and Franik, Tadeusz and Celej, Maciej and Migza, Marcin}, number={No 3}, journal={Archives of Mining Sciences}, howpublished={online}, year={2014}, publisher={Committee of Mining PAS}, title={Regional Differences in Demand for Coal as A Basis for Development of A Product Distribution Model for Mining Companies in the Individual Customers Segment}, URL={http://www.journals.pan.pl/Content/93651/PDF/10267-Volume59_Issue3-13_paper.pdf}, doi={10.2478/amsc-2014-0053}, }