https://dtp.wikipedia.org/wiki/Templat:Ifempty
Templat:Ifempty - Wikipedia
templatwikipedia
https://meta.wikimedia.org/wiki/Template:Ifempty
Template:Ifempty - Meta-Wiki
templatemetawiki
https://hif.wikipedia.org/wiki/Template:Ifempty
Template:Ifempty - Wikipedia
templatewikipedia