kw.\*:("Difference in difference method")
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The effect of carbon tax on per capita CO2 emissionsBOQIANG LIN; XUEHUI LI.Energy policy. 2011, Vol 39, Num 9, pp 5137-5146, issn 0301-4215, 10 p.Article
Goal-oriented computational steeringSMITH, W. R; ANDERSON, W. L; HAFTEL, M. I et al.SPIE proceedings series. 1999, pp 250-261, isbn 0-8194-3170-2Conference Paper
