Warr, Benjamin S., Nina Eisenmenger, Friedrich Krausmann, Heinz Schandl, and Robert U. Ayres. 2010. Energy use and economic development; A comparative analysis of useful work supply in Austria, Japan, the United Kingdom and the US during 100 years of economic growth. 69(10): 1904-1917. Ecological Economics
Warr, Benjamin S., Nina Eisenmenger, Friedrich Krausmann, Heinz Schandl, and Robert U. Ayres. 2010. Energy use and economic development; A comparative analysis of useful work supply in Austria, Japan, the United Kingdom and the US during 100 years of economic growth. Ecological Economics 69(10): 1904-1917.