Electronics Letters
Electronics Letters > 1989 > 25 > 8 > 509 - 510
Electronics Letters > 1989 > 25 > 8 > 512 - 513
Electronics Letters > 1989 > 25 > 8 > 510 - 511
Electronics Letters > 1989 > 25 > 8 > 509 - 510
Electronics Letters > 1989 > 25 > 8 > 512 - 513
Electronics Letters > 1989 > 25 > 8 > 510 - 511