Most-favoured nation treatment
Indirect expropriation
http://globalarbitrationreview.com/news/article/34160/salini-takes-argentina/ (requires subscription)
https://icsid.worldbank.org/en/Pages/cases/casedetail.aspx?CaseNo=ARB/15/39
https://www.iareporter.com/articles/in-a-new-ruling-a-tribunal-chaired-by-james-crawdford-weighs-in-on-prescription-18-month-local-remedies-requirement-and-doctrine-of-forum-non-conveniens/ (requires subscription)