@ARTICLE{Zhang_Lei_Nitrogen_2015, author={Zhang, Lei and Aziz, Naj and Ren, Ting and Nemcik, Jan and Tu, Shihao}, number={No 4}, journal={Archives of Mining Sciences}, howpublished={online}, year={2015}, publisher={Committee of Mining PAS}, title={Nitrogen Injection To Flush Coal Seam Gas Out Of Coal: An Experimental Study}, URL={http://czasopisma.pan.pl/Content/94007/PDF/10267-Volume60_Issue4-11_paper.pdf}, doi={10.1515/amsc-2015-0067}, }