%% You should probably cite draft-ietf-calext-extensions instead of this I-D. @techreport{daboo-icalendar-extensions-07, number = {draft-daboo-icalendar-extensions-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-daboo-icalendar-extensions/07/}, author = {Cyrus Daboo}, title = {{New Properties for iCalendar}}, pagetotal = 17, year = 2013, month = sep, day = 12, abstract = {This document defines a set of new properties for iCalendar data as well as extending the use of some existing properties to the entire iCalendar object.}, }