Fair and equitable treatment/Minimum standard of treatment, including denial of justice claims
Full protection and security, or similar
Umbrella clause
Arbitrary, unreasonable and/or discriminatory measures
http://www.iisd.org/itn/2009/07/14/arbitrators-clash-on-question-of-interpretation-in-hrvatska-electroprivreda-d-d-v-the-republic-of-slovenia/
http://www.energycharter.org/what-we-do/dispute-settlement/investment-dispute-settlement-cases/11-hrvatska-elektroprivreda-dd-hep-croatia-v-republic-of-slovenia/
http://globalarbitrationreview.com/news/article/14981/barrister-dismissed-icsid-ruling/ (requires subscription)
http://www.transnational-dispute-management.com/downloads/14831_case_report_hep_v_slovenia.pdf