"Transports internationaux Balkans." . . "Infrastructure des transports." . . "Wirtschaftsentwicklung" . . "Transports." . . "Congrès." . . "Transport." . . "Transit." . . "Südosteuropa." . . "aaTransportation azBalkan Peninsula axPlanning" . . "Transport Balkans." . . "aaEuropean Union" . . . . . . . . . . . . "Transport issues and problems in Southeastern Europe"@en . "Transport issues and problems in Southeastern Europe" . . . . . . . . "Transport issues and problems in southeastern Europe" . . . . . . "Conference papers and proceedings"@en . "Conference papers and proceedings" . . "Conference proceedings"@en . . . . . . . . . . . . . . . . . . . "Europa: Zuidoost" . . "Planification des transports." . . "aaTransit, International azBalkan Peninsula" . . "Transportation and state Balkan Peninsula Congresses." . . "Europe du Sud-Est." . . "Transportation Balkan Peninsula Congresses." . . "Balkanhalbinsel" . . "Transportation" . . "Transportation." . "Transportproblem" . . . . "Transportation and state" . . "Transportation and state." . "Balkan Peninsula" . . "Balkan Peninsula." . "Europäische Union" . .