[1] [CITE[IRC logs: freenode / #whatwg / 20120803]]
( ([TIME[2012-08-25 11:16:05 +09:00]] 版))
<http://krijnhoetmer.nl/irc-logs/whatwg/20120803>

[2] [CITE[IRC logs: freenode / #whatwg / 20121010]]
( ([TIME[2012-10-14 18:58:16 +09:00]] 版))
<http://krijnhoetmer.nl/irc-logs/whatwg/20121010>

[3] [CITE@en['''['''css-values-4''']''' Per WG resolution, dppx is the canonical <resolution> …]]
([[tabatkins]]著, [TIME[2018-05-10 09:08:08 +09:00]])
<https://github.com/w3c/csswg-drafts/commit/ce8046fd907c17d2e0ab6d0f7ed65f81eedcb89a>

[4] [CITE@en['''['''css-values-4''']''''''['''cssom''']''' <resolution> serializes to 'dppx', not 'x' · Issue #2241 · w3c/csswg-drafts]]
([TIME[2018-05-11 12:35:40 +09:00]])
<https://github.com/w3c/csswg-drafts/issues/2241>

[5] [CITE@en['''['''css-values-4''']''''''['''cssom''']''' <resolution> serializes to 'dppx', not 'x' · Issue #2241 · w3c/csswg-drafts]]
([TIME[2018-05-11 12:35:47 +09:00]])
<https://github.com/w3c/csswg-drafts/issues/2241>