diff --git a/yaml/CMAC.yaml b/yaml/CMAC.yaml
deleted file mode 100644
index 62cbabd..0000000
--- a/yaml/CMAC.yaml
+++ /dev/null
@@ -1,6 +0,0 @@
-# SPDX-License-Identifier: CC0-1.0
-id: CMAC
-oid: 1.2.840.113549.1.9.16.3.25
-name: Cipher-based Message Authentication Code
-cryptoClass: Cryptographic-Hash-Function/Message-Authentication-Code
-commonkeySize: '128'
diff --git a/yaml/cmac.yaml b/yaml/cmac.yaml
new file mode 100644
index 0000000..b4f00b8
--- /dev/null
+++ b/yaml/cmac.yaml
@@ -0,0 +1,10 @@
+# SPDX-License-Identifier: CC0-1.0
+id: cmac
+oid: 1.2.840.113549.1.9.16.3.25
+name: Cipher-based Message Authentication Code
+cryptoClass: Cryptographic-Hash-Function/Message-Authentication-Code
+commonkeySize: '128'
+reference:
+  - https://csrc.nist.gov/pubs/sp/800/38/b/upd1/final
+  - https://csrc.nist.gov/News/2025/decision-to-revise-sp-800-38b-and-38c
+  - https://nvlpubs.nist.gov/nistpubs/SpecialPublications/NIST.SP.800-38b.pdf
diff --git a/yaml/cmea.yaml b/yaml/cmea.yaml
index 645950b..fc82f77 100644
--- a/yaml/cmea.yaml
+++ b/yaml/cmea.yaml
@@ -3,3 +3,7 @@ id: cmea
 name: Cellular Message Encryption Algorithm
 cryptoClass: Symmetric-Key-Algorithm/Stream-Cipher
 commonkeySize: '64'
+reference:
+  - https://www.3gpp2.org/Public_html/Specs/S.S0053-0_v2.0.pdf
+  - https://doi.org/10.6028/NIST.SP.800-38A
+  - https://www.iso.org/standard/81564.html
diff --git a/yaml/des.yaml b/yaml/des.yaml
index 0931f59..c0d93de 100644
--- a/yaml/des.yaml
+++ b/yaml/des.yaml
@@ -5,3 +5,6 @@ name: Data Encryption Standard
 cryptoClass: Symmetric-Key-Algorithm/Block-Cipher
 commonkeySize: '168'
 specifiedkeySize: '56'
+reference:
+  - https://csrc.nist.gov/pubs/fips/46-3/final
+  - https://web.archive.org/web/20140226205104/http://origin-www.computer.org/csdl/mags/co/1977/06/01646525.pdf
diff --git a/yaml/dsa.yaml b/yaml/dsa.yaml
index 60c2755..852990e 100644
--- a/yaml/dsa.yaml
+++ b/yaml/dsa.yaml
@@ -5,3 +5,6 @@ name: Digital Signature Algorithm
 cryptoClass: Asymmetric-Key-Algorithm/Digital-Signature
 commonkeySize: '128'
 specifiedkeySize: {min: '2048', max: '3072'}
+reference:
+  - https://nvlpubs.nist.gov/nistpubs/FIPS/NIST.FIPS.186-5.pdf
+  - https://web.archive.org/web/20131213131144/http://www.itl.nist.gov/fipspubs/fip186.htm#FIPS_TOP
diff --git a/yaml/ecdh.yaml b/yaml/ecdh.yaml
index f24b05b..e7d03ea 100644
--- a/yaml/ecdh.yaml
+++ b/yaml/ecdh.yaml
@@ -5,3 +5,5 @@ name: Elliptic-Curve Diffie-Hellman
 cryptoClass: Asymmetric-Key-Algorithm/Key-Exchange-Mechanism
 commonkeySize: '128'
 specifiedkeySize: {min: '256', max: '521'}
+reference:
+  - https://nvlpubs.nist.gov/nistpubs/SpecialPublications/NIST.SP.800-56Ar3.pdf
diff --git a/yaml/elgamal.yaml b/yaml/elgamal.yaml
index 1d531a5..f80866a 100644
--- a/yaml/elgamal.yaml
+++ b/yaml/elgamal.yaml
@@ -5,3 +5,5 @@ name: ElGamal Encryption System
 cryptoClass: Asymmetric-Key-Algorithm/Public-Key-Cipher
 commonkeySize: '128'
 specifiedkeySize: {min: '2048', max: '4096'}
+reference:
+  - https://caislab.kaist.ac.kr/lecture/2010/spring/cs548/basic/B02.pdf
diff --git a/yaml/fortuna.yaml b/yaml/fortuna.yaml
index ec98bca..b057c87 100644
--- a/yaml/fortuna.yaml
+++ b/yaml/fortuna.yaml
@@ -3,3 +3,5 @@ id: fortuna
 name: Fortuna Random Number Generator
 cryptoClass: Symmetric-Key-Algorithm/Random-Number-Generator
 commonkeySize: '64'
+reference:
+  - https://www.schneier.com/academic/fortuna/
diff --git a/yaml/gost.yaml b/yaml/gost.yaml
index c11932c..5f3e614 100644
--- a/yaml/gost.yaml
+++ b/yaml/gost.yaml
@@ -4,3 +4,7 @@ oid: 1.2.643.2.2.21
 name: GOST Block Cipher
 cryptoClass: Symmetric-Key-Algorithm/Block-Cipher
 commonkeySize: '64'
+reference:
+  - https://doi.org/10.17487/RFC8891
+  - https://www.rfc-editor.org/info/rfc7801
+  - https://www.rfc-editor.org/info/rfc5830