%% You should probably cite rfc6721 instead of this I-D.
@techreport{snell-atompub-tombstones-14,
	number =	{draft-snell-atompub-tombstones-14},
	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-snell-atompub-tombstones-14},
        author =	{James M. Snell},
	title =		{{The Atom "deleted-entry" Element}},
	pagetotal =	10,
	year =		,
	month =		,
	day =		,
	abstract =	{This specification adds mechanisms to the Atom Syndication Format which publishers of Atom Feed and Entry documents can use to explicitly identify Atom entries that have been removed.},
}