1979 electronic design article describing psrb in AoE

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Apparently there is an article in electronic design sometime in 1979
which describes a calculator for determining resistor values for a
arbitrary spectrum psrb which is very similar to the one on pages 662
and 663. The article is by michael workman. Does anyone know where I
could get this article or the calculator used to determine the resistor
values? Shucks if I had been born a year earlier I might have snagged
it myself....