Electronics Letters
Electronics Letters > 1979 > 15 > 1 > 26 - 28
Electronics Letters > 1987 > 23 > 12 > 613 - 614
Electronics Letters > 1987 > 23 > 13 > 675 - 677
Electronics Letters > 1989 > 25 > 1 > 14 - 15
Electronics Letters > 1991 > 27 > 20 > 1886 - 1888
Electronics Letters > 1992 > 28 > 12 > 1167 - 1168
Electronics Letters > 1993 > 29 > 4 > 415 - 417