Nikoonahad, M.; Yue, G.Q.; Ash, E.A.: 'Pulse compression acoustic microscopy at 750 MHz', Electronics Letters, 1983, 19, (19), p. 782-784, DOI: 10.1049/el:19830533
IET Digital Library, https://digital-library.theiet.org/;jsessionid=c44h1ar2lm0r2.x-iet-live-01content/journals/10.1049/el_19830533