Bheekhun, Nadiir, Abd Rahim Abu Talib, and Fortunato Cardenas. “Towards a Sustainable Aerogel Airship: A Primer”. International Journal of Engineering and Technology 7, no. 4.13 (October 9, 2018): 141–145. Accessed May 12, 2025. https://mail.sciencepubco.com/index.php/IJET/article/view/21346.