@ARTICLE{Szurlej_Adam_The_2013, author={Szurlej, Adam}, number={No 3}, journal={Archives of Mining Sciences}, howpublished={online}, year={2013}, publisher={Committee of Mining PAS}, title={The State Policy for Natural Gas Sector / Sektor Gazu Ziemnego W Polityce PaƄstwa}, URL={http://ochroma.man.poznan.pl/Content/93290/PDF/10267-Volume58_Issue3-24_paper.pdf}, doi={10.2478/amsc-2013-0065}, }