1. Grapevine
2. BOGGS D. R. Internet Broadcasting. PhD dissertation Department of Electrical Engineering Stanford University Jan. 1982. BOGGS D. R. Internet Broadcasting. PhD dissertation Department of Electrical Engineering Stanford University Jan. 1982.
3. Pup: An Internetwork Architecture
4. DATA ENCRYPTION STANDARD. FIPS Publication 46. National Bureau of Standards U.S. Department of Commerce Washington D.C. January 1977. DATA ENCRYPTION STANDARD. FIPS Publication 46. National Bureau of Standards U.S. Department of Commerce Washington D.C. January 1977.