)٢( &quot; Potentials and policy implications of energy and material efficiency improvement &quot; , prepared by E. Worrell, and others (Utrecht University, Department of Science, Technology and Society), and Lyn Price and others. (Berkeley, CA., Energy Analysis Programmes, Lawrence Berkeley National Laboratory).
2 &quot; Potentials and policy implications of energy and material efficiency improvement &quot; , por E. Worrel y otros (Universidad de Utrecht, Departamento de Ciencia, Tecnología y Sociedad); Lyn Price y otros (Berkeley, California y &quot; Energy Analysis Programmes &quot; , Lawrence Berkeley National Laboratory).