@ARTICLE{Perry_Kyle_A._The_2014, author={Perry, Kyle A.}, number={No 3}, journal={Archives of Mining Sciences}, howpublished={online}, year={2014}, publisher={Committee of Mining PAS}, title={The Effects of Friction on the Performance of A Concrete Block Mine Seal with Pressurized Grout Bags}, URL={http://journals.pan.pl/Content/93662/PDF/10267-Volume59_Issue3-15_paper.pdf}, doi={10.2478/amsc-2014-0055}, }