Bell System Technical Journal

Bell System Technical Journal was the in-house journal of Bell Laboratories.

It is most famous for Claude Shannon s paper A mathematical theory of communication which founded the field of information theory.

It is also notorious for an article in the 1950 s which revealed the internal operation of the long distance switching system, which sparked hackers to develop the Blue Box.

The journal has since been through several name changes including, AT & T Bell Laboratories Technical Journal and AT & T Technical Journal. It is currently known as Bell Labs Technical Journal.