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"gravel" » "graves"

1
by Braconier, Henrik
Published 2013
OECD Publishing
... from Bing Maps Routing Services. As our dataset also has information on travel time, we are able...

2
by Braconier, Henrik
Published 2013
OECD Publishing
... efficiency of the road transport sector, including non-market inputs - such as travel time - and negative...