Electronics Letters
Electronics Letters > 1970 > 6 > 3 > 50 - 51
Electronics Letters > 1970 > 6 > 8 > 258 - 259
Electronics Letters > 1970 > 6 > 20 > 658 - 659
Electronics Letters > 1970 > 6 > 21 > 672 - 673
Electronics Letters > 1970 > 6 > 25 > 793 - 794