Electronics Letters
Electronics Letters > 1974 > 10 > 7 > 114 - 115
Electronics Letters > 1975 > 11 > 23 > 556 - 557
Electronics Letters > 1989 > 25 > 2 > 119 - 121
Electronics Letters > 1990 > 26 > 12 > 786 - 788
Electronics Letters > 1991 > 27 > 16 > 1471 - 1472
Electronics Letters > 2009 > 45 > 6 > 326 - 327