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Environmental Innovation and Societal Transitions > 2015 > 16 > Complete > 87-105
Transportation Research Part D: Transport and Environment > 2014 > 33 > C > 196-209
Environmental Innovation and Societal Transitions > 2015 > 16 > Complete > 87-105
Transportation Research Part D: Transport and Environment > 2014 > 33 > C > 196-209