G. Subhashini, V. Vaishalee, and K. A. Rajadharwini. “Comparative Analysis of Full-Adder Using Conventional XNOR and NEO-XNOR Logic”. Journal of Electronic Design Engineering, vol. 6, no. 1, Feb. 2020, pp. 16-23, http://matjournals.co.in/index.php/JOEDE/article/view/2659.