http://globalarbitrationreview.com/news/article/32464/bolivia-faces-new-may-day-nationalisation-claim/ (requires subscription)
http://www.cepb.org.bo/calypso/juridica/adjuntos/ds_2156.pdf
http://www.reuters.com/article/2013/01/08/ree-tde-idUSL5E9C8B4Z20130108
http://blogs.ft.com/beyond-brics/2014/08/25/bolivia-settles-with-foreign-companies-as-elections-approach/
http://www.ree.es/en/about-us/ree-2-minutes/our-history