Code 128 specifications. Interleaved 2 of 5 specifications. Plessey Code specifications. The magazine list will lead you to web pages of leading magazines in the bar code and automatic identification industry. Many of these magazines are free to people in the United States.
Several magazines have European issues and Asian issues that are free there.
BarCode1 Magazine List. A list of magazines about bar code. BarCode1 Book List. A list of books about bar code. Market Information BarCode 1 Market Research Page Automatic Identification News Summaries.