Premnafto: Malsamoj inter versioj

133 bitokojn aldonis ,  antaŭ 10 monatoj
Rescuing 1 sources and tagging 0 as dead.) #IABot (v2.0.8.6
[kontrolita revizio][kontrolita revizio]
(Rescuing 1 sources and tagging 0 as dead.) #IABot (v2.0.8.5)
(Rescuing 1 sources and tagging 0 as dead.) #IABot (v2.0.8.6)
==Eksteraj ligiloj==
* [http://econbrowser.com/archives/2012/07/shale_oil_and_t Shale oil and tight oil]
* [http://belfercenter.ksg.harvard.edu/files/draft-2.pdf The Shale Oil Boom: a US Phenomenon] {{Webarchiv|url=https://web.archive.org/web/20140611112538/http://belfercenter.ksg.harvard.edu/files/draft-2.pdf |date=2014-06-11 }} de Leonardo Maugeri, Harvard University, Geopolitics of Energy Project, Belfer Center for Science and International Affairs, Discussion Paper 2013-05
 
{{Bibliotekoj}}
79 711

redaktoj