Wu, Jianping, Yuanhua Wang, Yiqin Wan, Hanwu Lei, Fei Yu, Yuhuan Liu, Paul Chen, Lirong Yang, and Roger Ruan. “Processing and Properties of Rigid Polyurethane Foams Based on Bio-Oils from Microwave-Assisted Pyrolysis of Corn Stover”. International Journal of Agricultural and Biological Engineering 2, no. 1 (March 31, 2009): 40–50. Accessed January 27, 2026. https://ijabe.org/index.php/ijabe/article/view/81.