Links
[1] https://civilresistance.info/biblio-item/2013/civil-resistance-deterrent-fracking
[2] https://www.opendemocracy.net/civilresistance/philippe-duhamel/civil-resistance-as-deterrent-to-fracking-part-one-they-shale-not-0
[3] http://www.opendemocracy.net/civilresistance/philippe-duhamel/civil-resistance-as-deterrent-to-fracking-part-two-shale-911
[4] https://civilresistance.info/biblio-item/2013/la-resistencia-civil-como-elemento-disuasorio-para-el-fracturamiento-hidraulico