Electronics Letters
Electronics Letters > 1987 > 23 > 5 > 209 - 210
Electronics Letters > 1990 > 26 > 3 > 159 - 160
Electronics Letters > 1990 > 26 > 9 > 590 - 592
Electronics Letters > 1990 > 26 > 14 > 1061 - 1063
Electronics Letters > 1990 > 26 > 23 > 1977 - 1978
Electronics Letters > 1992 > 28 > 11 > 977 - 979
Electronics Letters > 1993 > 29 > 21 > 1890 - 1891