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Unknown Quantity
- An: 2005
- Țară: France, Germany
- Gen: Documentar
- Studio: Fondation Cartier pour l’art contemporain, ZKM Karlsruhe, Von Vietinghoff Filmproduktion (VVF)
- Cuvânt cheie:
- Director: Andrei Ujică
- Distribuție: Svetlana Alexievich, Paul Virilio