Herndon, J. Marvin. “Geophysical Circumstances Enabling Giant Dragonfly Flight in the Carboniferous and Permian Periods”. European Journal of Applied Sciences 13, no. 05 (September 29, 2025): 203–209. Accessed December 5, 2025. https://journals.scholarpublishing.org/index.php/AIVP/article/view/19452.