Whiteside, Mark, and J. Marvin Herndon. “New Paradigm: Coal Fly Ash As the Main Cause of Stratospheric Ozone Depletion”. European Journal of Applied Sciences 10, no. 5 (September 28, 2022): 207–221. Accessed December 1, 2024. http://804474.wannyin.cyou/index.php/AIVP/article/view/13208.