%% You should probably cite rfc3136 instead of this I-D. @techreport{ietf-spirits-architecture-03, number = {draft-ietf-spirits-architecture-03}, type = {Internet-Draft}, institution = {Internet Engineering Task Force}, publisher = {Internet Engineering Task Force}, note = {Work in Progress}, url = {https://datatracker.ietf.org/doc/draft-ietf-spirits-architecture/03/}, author = {Hui-Lan Lu and Mark Weissman and Lev Slutsman and Igor Faynberg}, title = {{The SPIRITS Architecture}}, pagetotal = 10, year = 2001, month = may, day = 9, abstract = {This document describes the architecture for supporting SPIRITS services, which are those originating in the PSTN (Public Switched Telephone Network)and necessitating the interactions between the PSTN and the Internet. This memo provides information for the Internet community.}, }