Article Arne Kaijser (2021)
Driving on wood: The Swedish transition to wood gas during World War Two. History and Technology (pp. 468-486). (/isis/citation/CBB871842073/) unapi

Article Mark Aldrich (2020)
When Steam Railroads burned oil. Railroad History (pp. 10-25). (/isis/citation/CBB267297131/) unapi

Article Vikram Mittal (2016)
The Development of the Octane Number Tests and their Impact on Automotive Fuels and American Society. International Journal for the History of Engineering and Technology (pp. 213-227). (/isis/citation/CBB625075428/) unapi

Book Anna Åberg (2013)
A Gap in the Grid: Attempts to Introduce Natural Gas in Sweden 1967-1991. (/isis/citation/CBB848244385/) unapi

Chapter Helena Ekerholm (2012)
Cultural Meanings of Wood Gas as Automobile Fuel in Sweden, 1930-1945. In: Past and Present Energy Societies: How Energy Connects Politics, Technologies and Cultures (pp. 223-247). (/isis/citation/CBB951542006/) unapi

Article Reinhold Bauer (2007)
Innovation Within an "Old" System — Pulverized Coal Engines and the De- and Re-Stabilization of the "Steam-Railway-System" in Germany in The Inter-War Era. Icon: Journal of the International Committee for the History of Technology (pp. 50-61). (/isis/citation/CBB207804047/) unapi

Article Pursell, Carroll W. (1993)
The rise and fall of the appropriate technology movement in the United States, 1965--1985. Technology and Culture (p. 629). (/isis/citation/CBB001180246/) unapi