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Publisher
- ivl svenska miljoinstitutet18
- linkoping15
- borlange11
- stockholm : centre for transport studies stockholm, swedish national road & transport research institute (vti), kth royal institute of technology, s-wopec, scandinavian working papers in economics7
- trafikverket7
- royal institute of technology, stockholm, sweden5
- stockholm5
- wsp analysis & strategy, sweden5
- miljo och trafikanalys, mta4