E3S Web of Conferences

An analysis of sales of coal products with reference to environmental regulations of the European Union

Anna Manowska and Aurelia Rybak

E3S Web Conf., 108 (2019) 01034

Published online: 24 September 2019

DOI: 10.1051/e3sconf/201910801034

Anna Manowska

Aurelia Rybak

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