'Back Matter' (Control, Robotics and Sensors, 2018), 'Open Resonator Microwave Sensor Systems for Industrial Gauging: A practical design approach', Chap. bm, pp. -, DOI: 10.1049/PBCE103E_bm
IET Digital Library, https://digital-library.theiet.org/;jsessionid=6n7sc9ce7gngo.x-iet-live-01content/books/10.1049/pbce103e_bm