Sierra Energy (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Sierra Energy" in English language version.

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bizjournals.com

"Sierra Energy wins federal grant to test trash-to-hydrogen technology". bizjournals.com. 8 October 2015. Retrieved 26 May 2023. (subscription required)
"This Davis company has raised a major financing round for its clean-energy technology". bizjournals.com. 15 June 2016. Retrieved 26 May 2023. (subscription required)

Wilser, Jeff (December 4, 2019). "Recycling: Turning Trash Into Energy". Comstock's magazine. Retrieved 26 May 2023.

Tullis, Paul (17 August 2013). "Trash into Gas, Efficiently? An Army Test May Tell". The New York Times.