Yasaka, H.; Fukuda, M.; Ikegami, T.: 'Current tailoring for lowering linewidth floor', Electronics Letters, 1988, 24, (12), p. 760-762, DOI: 10.1049/el:19880513
IET Digital Library, https://digital-library.theiet.org/;jsessionid=24n58ltlvv3yc.x-iet-live-01content/journals/10.1049/el_19880513