Magnitude of the transfer function

[NascentOxygen]

How did you find this? What search terms did you use? I've seen interesting references to that old magazine, Tele-Tech, but I would never have expected that such relatively obscure articles would be indexed.

The article by Longmire was cited by authors in one of the google hits. If I couldn't have free access to the article, maybe I could read from its bibliography. This here: http://ieeexplore.ieee.org/document/4051325/references

So I simply needed to find an archive of the Tele-Tech publication.