"Roads." . . "Railroads." . . "Commission of the European Communities." . . . . "De europæiske Fællesskaber. Generaldirektoratet for Transport" . . . . . . . . . . . "The analysis of economic costs and expenses in road and rail transport memorandum"@en . "The analysis of economic costs and expenses in road and rail transport : memorandum" . . . . . "The analysis of economic costs and expenses in road and rail transport memorandum prepared for the Directorate-General for Transport of the Commission of the European Communities"@en . . "The analysis of economic costs and expenses in road and rail transport : memorandum prepared for the Directorate-General for Transport of the Commission of the European Communities" . "The analysis of economic costs and expenses in road and rail transport : memorandum prepared for the Directorate-General for Transport of the Commission of the European Communities"@en . . . . . . . . . . . . . . "Transportation." . .