Perfrement, Tina, Kevin Foard, Robert Pascoe, and Stefan Maric. “Striving for a Cleantech Future, One Product at a Time”. KnE Engineering 2, no. 1 (February 9, 2017): 289–296. Accessed September 4, 2025. https://knepublishing.com/index.php/KnE-Engineering/article/view/628.