1. Musialski C. An external commentary on the UK/England & Wales: towards an even more refined legal and regulatory framework by imposing additional and specific requirements for mitigating the risk of induced seismicity. In: European Energy Studies, editor. Shale gas in Europe: a multidisciplinary analysis with a focus on European specificities. Deventer: Claeys & Casteels Pub; 2013.
2. Tomasi T, Nicolet E. France: a step-back: the French ban and its aftermath. In: European Energy Studies, editor. Shale gas in Europe: a multidisciplinary analysis with a focus on European specificities. Deventer: Claeys & Casteels Pub; 2013.
3. Patel S. Europe embraces shale gas. Power Magazine, April 1. 2013. https://www.powermag.com/europe-embraces-shale-gas/.
4. Reed S. Chevron to Abandon shale natural gas venture in Poland. New York Times. 2015.
5. Reuters. Chevron halts east Romania shale gas search after protests. 2013. https://www.reuters.com/article/romania-shale-chevron/chevron-halts-east-romania-shale-gas-search-after-protests-idUSL6N0I72PH20131017. Accessed 1 Sept 2020.