Electronics Letters
Electronics Letters > 1989 > 25 > 5 > 359 - 360
Electronics Letters > 1990 > 26 > 8 > 497 - 498
Electronics Letters > 1991 > 27 > 6 > 506 - 507
Electronics Letters > 1991 > 27 > 6 > 516 - 518
Electronics Letters > 1991 > 27 > 8 > 655 - 657
Electronics Letters > 1991 > 27 > 14 > 300 - 301
Electronics Letters > 1993 > 29 > 15 > 1335 - 1337
Electronics Letters > 1993 > 29 > 16 > 1408 - 1409