The following Unicode-related documents record the purpose and process of defining specific characters in the Cyrillic Extended-C block:
| Version | Final code points| Count | L2 ID | WG2 ID | Document | |
|---|
| 9.0 | U+1C80..1C88 | 9 | [https://www.unicode.org/L2/L2000/00128-pastscripts.pdf L2/00-128]}} | title=Scripts from the Past in Future Versions of Unicode|date=2000-03-01|first=Carl-Martin|last=Bunz}} |
| [https://www.unicode.org/L2/L2013/13153-variants.pdf L2/13-153]}} | title=Proposal to Use Standardized Variation Sequences to Encode Church Slavonic Glyph Variants in Unicode|date=2013-07-20|first1=Aleksandr|last1=Andreev|first2=Yuri|last2=Shardt|first3=Nikita|last3=Simmons}} |
| [https://www.unicode.org/L2/L2013/13164-cyrillic-fdbk.pdf L2/13-164]}} | title=Feedback from Experts on Cyrillic proposals|date=2013-07-25|first1=Ralph|last1=Cleminson|first2=David|last2=Birnbaum}} |
| [https://www.unicode.org/L2/L2014/14196-slavonic.pdf L2/14-196]}} | [https://www.unicode.org/wg2/docs/n4607.pdf N4607][}}]| title=Proposal to Encode Additional Cyrillic Characters used in Early Church Slavonic Printed Books|date=2014-08-06|first1=Aleksandr|last1=Andreev|first2=Yuri|last2=Shardt|first3=Nikita|last3=Simmons}} | |
| [https://www.unicode.org/wg2/docs/n4645.pdf N4645] | title=Letter in support of "Proposal to Encode Additional Cyrillic Characters used in Early Church Slavonic Printed Books"|date=2014-09-27|first=Aleksandr G.|last=Kravetsky}} |
1. ^{{cite web|url=https://www.unicode.org|title=Unicode character database|work=The Unicode Standard|accessdate=2016-07-09}}
2. ^{{cite web|url=https://www.unicode.org/versions/enumeratedversions.html|title=Enumerated Versions of The Unicode Standard|work=The Unicode Standard|accessdate=2016-07-09}}
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