http://www.energycharter.org/what-we-do/dispute-settlement/investment-dispute-settlement-cases/71-ks-invest-gmbh-and-tls-invest-gmbh-v-spain/
http://globalarbitrationreview.com/news/article/33920/japanese-investor-joins-solar-claim-bandwagon/ (requires subscription)
https://www.iareporter.com/articles/30215/ (requires subscription)
https://www.ecestaticos.com/file/d88ce7a07265dbf8d809b453b848f239/1514204320-186-881-tribunals-arbitratge.pdf