Electronics Letters
Electronics Letters > 1970 > 6 > 2 > 26 - 28
Electronics Letters > 1970 > 6 > 3 > 78 - 79
Electronics Letters > 1970 > 6 > 11 > 339 - 340
Electronics Letters > 1970 > 6 > 13 > 422 - 424
Electronics Letters > 1970 > 6 > 22 > 701 - 702