求助英文文献两篇:
第一篇篇名:Values, environmental concern, and environmental behavior: a study into household energy use。
作者:Poortinga, W., Steg, L., Vlek, C. 2004.
Environment and Behavior 36, 70–93。
第二篇篇名:The role of problem awareness in willingness-to-change car use and in evaluating relevant policy measures。
作者:Steg, L., Vlek, C 1997
Theory and Application. Pergamon, Oxford, pp. 465–475.