'Front Matter' (Electromagnetic Waves, 1997), 'Microwave Transmission Line Impedence Data', Chap. fm, pp. -, DOI: 10.1049/SBEW019E_fm
IET Digital Library, https://digital-library.theiet.org/;jsessionid=fivbnyfokxax.x-iet-live-01content/books/10.1049/sbew019e_fm