Brantley, S. L. and Yoxtheimer, D. and Arjmand, Sina and Grieve, Paul and Vidic, R. D. and Pollak, Jon and Llewellyn, Garth T. and Abad, J.D and Simon, Cesar (2014) Water resource impacts during unconventional shale gas development: The Pennsylvania experience. International Journal of Coal Geology, 126. pp. 140-156. DOI: https://doi.org/10.1016/j.coal.2013.12.017