Hwan Ju, Seung, and Hee Suk Seo. “Design Key Management System for DLMS COSEM Standard-Based Smart Metering”. International Journal of Engineering and Technology 7, no. 3.34 (September 1, 2018): 554–557. Accessed May 12, 2025. https://mail.sciencepubco.com/index.php/IJET/article/view/19380.