Gadot, F.; Brillat, T.; Akmansoy, E.; de Lustrac, A.: 'New type of metallic photonic bandgap material suitable for microwave applications', Electronics Letters, 2000, 36, (7), p. 640-641, DOI: 10.1049/el:20000406
IET Digital Library, https://digital-library.theiet.org/;jsessionid=u15rsdm5l21r.x-iet-live-01content/journals/10.1049/el_20000406