Public international law
Investment arbitration
Commercial arbitration
WTO law
International human rights law/ECHR
International organizations' law
International humanitarian & criminal law
EU litigation
Competition
Trade
Fundamental freedoms
State aid
Public procurement
Institutional law
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Greek (native)
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Zena is listed in the arbitration rosters held by various international arbitral institutions including:
the Swiss Arbitration Association
the Vienna International Arbitration Centre
the Dubai International Financial Centre – LCIA
the Asian International Arbitration Centre (AIAC)
the Georgian International Arbitration Centre (GIAC)
the Czech Arbitration Court
Zena is also included in the Global Counsel and Arbitrators' list held by the Office of the Ombudsman for UN Funds and Programmes