Shabani, F., and S. Sayedsalehi. “Design of a Novel Fault Tolerant XOR Structure in Quantum Dot Cellular Automata”. Majlesi Journal of Electrical Engineering, Vol. 12, no. 3, Feb. 2018, pp. 35-40, http://mjee.iaumajlesi.ac.ir/index/index.php/ee/article/view/2553.