Einstein, , Dan, Ernst Worrell, and Marta Khrushch."Steam systems in industry: Energy use and energy efficiency improvement potentials."ACEEE's 2001 Summer Study on Energy Efficiency in Industry Proceedings 1 (2001).
Worrell, Ernst."Manufacturing."Macmillan Encyclopedia of Energy 1 (2001).
Price, Lynn K., Ernst Worrell, Jonathan E. Sinton, and Jiang Yun."Industrial energy efficiency policy in China."2001 ACEEE Summer Study on Energy Efficiency in Industry, 5/1/2001 2 (2001).
Maddalena, Randy L., Thomas E. McKone, Dennis P.H. Hsieh, and Shu Geng."Influential input classification in probabilistic multimedia models."Stochastic Environmental Research and Risk Assessment 15.1 (2001) 1-17. DOI
Banuri, Tariq, Terry Barker, Igor Bashmakov, Kornelis Blok, Daniel Bouille, and Renate Christ."Summary for policy makers."International Emissions Inventory Conference 12 (2001).