Ingraffea, Anthony R. and Wells, Martin T. and Santoro, Renee L. and Shonkoff, Seth B.C. (2014) Assessment and risk analysis of casing and cement impairment in oil and gas wells in Pennsylvania, 2000–2012. PNAS, 111 (30). pp. 10955-10960. DOI: https://doi.org/10.1073/pnas.1323422111