"Investments, Foreign (International law)" . . "Proportionality in law." . . "Proportionality in investor-state arbitration" . . . . . . . . "Proportionality in Investor-State Arbitration"@en . . . . . . . "Investitionsschutz." . . "Auslandsinvestition." . . . . "Verhältnismäßigkeitsgrundsatz." . . "International commercial arbitration." . . "Internationale Schiedsgerichtsbarkeit." . .