1. The Carboniferous Bowland Shale Gas Study: Geology and Resource Estimation;Andrews,2013
2. A baseline survey of dissolved methane in aquifers of Great Britain;Bell;Sci. Total Environ.,2017
3. BGS (British Geological Survey), 2019. British Geoindex Onshore. Available at: BGS Onshore GeoIndex (Last accessed: 05/03/2019).
4. Geochemistry of groundwater in the Saint-Édouard area, Quebec, Canada, and its influence on the distribution of methane in shallow aquifers;Bordeleau;Appl. Geochem.,2018
5. Cuadrilla Resources Ltd, 2019. Cuadrilla ePortal. Available at: https://www.cuadrillaresourceseportal.com/jan2019.html (Last accessed: 05/03/2019).