1. ISO TC97 SC16, Data Processing - Open Systems Interconnection - Basic Reference Model, DIS 7498.
2. CCITT Study Group 7, Reference Model for Public Data Network Applications.
3. Structuring Principles of the Communication Architecture of Open Systems;Burkhardt;Computer Networks,1981
4. OSI Reference Model - The ISO Model of Architecture for Open Systems Interconnection;Zimmerman;IEEE Trans. on Communications,1980
5. The ARPA Internet Protocol;Postel;Computer Networks,1981