%% You should probably cite rfc2531 instead of this I-D. @techreport{ietf-fax-feature-schema-05, number = {draft-ietf-fax-feature-schema-05}, 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-fax-feature-schema/05/}, author = {Lloyd McIntyre and Graham Klyne}, title = {{Content Feature Schema for Internet Fax}}, pagetotal = 51, year = 1999, month = jan, day = 11, abstract = {This document defines a content feature schema that is a profile of the media feature registration mechanisms for use in performing capability identification between extended Internet fax systems. {[}STANDARDS-TRACK{]}}, }