C. Hagen, Bjarne. “Ignition of Smoldering in Cotton: 3D-Heat-Transfer-Modeling”. American Scientific Research Journal for Engineering, Technology, and Sciences 50, no. 1 (December 14, 2018): 66–87. Accessed September 30, 2025. https://asrjetsjournal.org/American_Scientific_Journal/article/view/4530.