%% You should probably cite rfc2421 instead of this I-D. @techreport{ema-vpim-07, number = {draft-ema-vpim-07}, type = {Internet-Draft}, institution = {Internet Engineering Task Force}, publisher = {Internet Engineering Task Force}, note = {Work in Progress}, url = {https://datatracker.ietf.org/doc/draft-ema-vpim/07/}, author = {Glenn Parsons and Gregory Vaudreuil}, title = {{Voice Profile for Internet Mail - version 2}}, pagetotal = 56, year = 1998, month = apr, day = 27, abstract = {This document profiles Internet mail for voice messaging. {[}STANDARDS-TRACK{]}}, }