American Cryptogram Association - Zodiac articles
Within the back issues of "The Cryptogram", the bi-monthly journal of the American Cryptogram Association, are several articles related to the Zodiac ciphers. I'll try to post them here as I find them.
Here's one from the Jan-Feb 1989 issue, in the "Computer Column":


Here's one from the Jan-Feb 1989 issue, in the "Computer Column":













