%% You should probably cite draft-ietf-calext-subscription-upgrade-04 instead of this revision.
@techreport{ietf-calext-subscription-upgrade-02,
	number =	{draft-ietf-calext-subscription-upgrade-02},
	type =		{Internet-Draft},
	institution =	{Internet Engineering Task Force},
	publisher =	{Internet Engineering Task Force},
	note =		{Work in Progress},
	url =		{https://datatracker.ietf.org/doc/html/draft-ietf-calext-subscription-upgrade-02},
        author =	{Michael Douglass},
	title =		{{Calendar subscription upgrades}},
	pagetotal =	15,
	year =		,
	month =		,
	day =		,
	abstract =	{This specification updates {[}RFC5545{]} to add the value DELETED to the STATUS property. This specification also updates {[}RFC7240{]} to add the subscribe- enhanced-get and limit preferences.},
}