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Bruxelles: European Federation for Transport and Environment, 1995
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London: Earthscan, 1997
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Bruxelles: European Federation for Transport and Environment, 1993
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Cheltenham, UK [u.a.]: Edward Elgar, 2001
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Frankfurt am Main [u.a.]: Lang, 2006
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Mülheim/Ruhr: Westarp-Wiss., 1990
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Delft: CE Delft, March 2022
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Cheltenham, U.K; Northampton, Mass: Edward Elgar, c2005
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Cheltenham, UK; Northampton, MA: Edward Elgar Publishing, 2001