'Memristor logic gates' (Materials, Circuits and Devices, 2018), 'System Design with Memristor Technologies', Chap. 2, pp. 17-59, DOI: 10.1049/PBCS038E_ch2
IET Digital Library, https://digital-library.theiet.org/;jsessionid=1rto59k3q00hm.x-iet-live-01content/books/10.1049/pbcs038e_ch2