4MIKE GARFORTH. To buy or not to buy: Timber procurement policies in the EU [ R]. Gloucestersbire, FERN, 2004.
5GEORGE A ZSIDISIN, SUE P SIFERD. Environmental purchasing: A framework for theory development [ J ]. European Journal of Purchasing & Supply Management, 2001 (7) : 61 -73.
6CRAIG R CARTER, JOSEPH R CARTER. Inter- organizational de- terminants of environmental purchasing : Initial evidence from the consumer products industries [ J]. Decision Science, 1998, 29 (3) : 659 - 684.
8BRAWN E, WIELD D. Regulation as a means for the social control of technology [ J ]. Technology Analysis & Strategic Management, 1994, 6 (3): 259-272.
9PAUL EKINS, ANDREW VENN. Assessing innovation dynamics in-duced by environmental policy [ R]. London, Paul Ekins and An- drew Venn Policy Studies Institute: Combined Methodological and Case Study Synthesis Discussion Paper, 2006:33 -34.