'Introduction' (Materials, Circuits and Devices, 2018), 'System Design with Memristor Technologies', Chap. 1, pp. 1-16, DOI: 10.1049/PBCS038E_ch1 IET Digital Library, https://digital-library.theiet.org/;jsessionid=ah83lhm8f9nt5.x-iet-live-01content/books/10.1049/pbcs038e_ch1