Fair and equitable treatment/Minimum standard of treatment, including denial of justice claims
Full protection and security, or similar
Umbrella clause
Most-favoured nation treatment
Arbitrary, unreasonable and/or discriminatory measures
http://www.iareporter.com/articles/20100205_10 (requires subscription)
http://globalarbitrationreview.com/news/article/31952/czech-republic-defeats-real-estate-claim/ (requires subscription)
http://www.squiresanders.com/es/stephen_anway/