'Front Matter' (Electromagnetic Waves, 2018), 'Slotted Waveguide Array Antennas: Theory, analysis and design', Chap. fm, pp. -, DOI: 10.1049/SBEW517E_fm IET Digital Library, https://digital-library.theiet.org/;jsessionid=15q2pllla2vim.x-iet-live-01content/books/10.1049/sbew517e_fm