What environmental issues are associated with hydraulic fracturing?. www.usgs.gov [online]. [cit. 2018-09-16]. Dostupné online. (anglicky)[nedostupný zdroj]
pubs.usgs.gov
2016 One-Year Seismic Hazard Forecast for the Central and Eastern United States from Induced and Natural Earthquakes [online]. U.S. Department of the Interior U.S. Geological Survey, June 2016 [cit. 2018-09-16]. Dostupné online.
web.archive.org
Hydraulic Fracturing and Seismicity in the Western Canada Sedimentary Basin [online]. Seismological Research Letters, 2016 [cit. 2018-09-16]. Dostupné v archivu pořízeném dne 2018-11-23.
Archivovaná kopie. earthquake.usgs.gov [online]. [cit. 2018-09-16]. Dostupné v archivu pořízeném dne 2018-09-09.
wiley.com
onlinelibrary.wiley.com
SCHULTZ, Ryan; STERN, Virginia; NOVAKOVIC, Mark. Hydraulic fracturing and the Crooked Lake Sequences: Insights gleaned from regional seismic networks. Geophysical Research Letters. 2015-04-28, roč. 42, čís. 8. Dostupné online [cit. 2018-09-16]. ISSN1944-8007. doi:10.1002/2015gl063455/abstract. (anglicky)
worldcat.org
SCHULTZ, Ryan; STERN, Virginia; NOVAKOVIC, Mark. Hydraulic fracturing and the Crooked Lake Sequences: Insights gleaned from regional seismic networks. Geophysical Research Letters. 2015-04-28, roč. 42, čís. 8. Dostupné online [cit. 2018-09-16]. ISSN1944-8007. doi:10.1002/2015gl063455/abstract. (anglicky)