[1] [CITE@en[CSS Values and Units Module Level 3]]
( ([TIME[2015-06-11 05:29:20 +09:00]] 版))
<http://www.w3.org/TR/2015/CR-css-values-3-20150611/>

[2] [CITE@en[Re: '''['''css3-values''']''''''['''css3-speech''']''' dB & calc()]]
( ([[Tab Atkins Jr.]]著, [TIME[2016-05-10 01:18:25 +09:00]]))
<https://lists.w3.org/Archives/Public/www-style/2016May/0083.html>

[3] [CITE@en[CSS Values and Units Module Level 3]]
([TIME[2016-09-29 22:15:07 +09:00]])
<https://www.w3.org/TR/2016/CR-css-values-3-20160929/>

[4] [CITE@en['''['''CSSWG''']''''''['''css-values-3''']''' Updated CR of CSS Values and Units Level 3]]
([[fantasai]]著, [TIME[2018-08-15 08:47:11 +09:00]])
<https://lists.w3.org/Archives/Public/www-style/2018Aug/0013.html>

[5] [CITE@en['''['''CSSWG''']''''''['''css-values-4''']''' FPWD of CSS Values and Units Level 4]]
([[fantasai]]著, [TIME[2018-08-15 08:55:44 +09:00]])
<https://lists.w3.org/Archives/Public/www-style/2018Aug/0014.html>