1. ATM User Network Interface (UNI) Specification V3.1, Electronically available at http://www-mo.atmforum.com/ftp/atm/approved-specs/af-uni-0010.002/
2. ATM User Network Interface (UNI) Signalling Specification version 4.1, Electronically available at ftp://ftp.atmforum.com/pub/approved-specs/af-sig-0061.002.pdf .
3. Recommendation Q.2931 – User-Network Interface layer 3 specification for basic call/connection control. Electronically available at http://www.itu.int/rec/recommendation.asp?type=items&lang=e&parent=T-REC-Q.2931-199502-I
4. Private Network-Network Interface Specification V1.1, Electronically available at ftp://ftp.atmforum.com/pub/approved-specs/af-pnni-0055.001.pdf
5. Campbell, A.T., De Meer, H.G., Kounavis, M.E., Miki, K., Vicente, J.B., Villela, D.: A survey of programmable networks. ACM SIGCOMM Computer Communication Review 29(2), 7–23 (1999)