D4 Published development or research report or study
Transport and the Environment 2013.
Authors: Pöntynen R, Alhosalo M, Telaranta J
Publisher: Shortsea Promotion Centre (SPC) Finland
Publication year: 2013
Web address : http://www.utu.fi/fi/yksikot/mkk/spc/Documents/Environment_2013.pdf(external)