search query: @author Hammar, H. / total: 2
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1.
The significance of road transport costs in the Swedish forest industry
Journal of Transport Economics and Policy
2008 : JAN, VOL. 42:1, p. 83-104
 2008 Hammar, H.
Lundgren, T.
Sjöström, M.
2.
Incentive-based regulation of CO2 emissions from international aviation
Journal of Air Transport Management
2002 : NOV, VOL. 8:6, p. 365-372
 2002 Carsson, F.
Hammar, H.
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