README | 2 +-

diff --git a/README b/README
index b39b93895974c51f6be8bf87edacd1b94cd78bf3919eadbf949982c0589f4bcc..9229f578c9cffddb0505f81d613c0f81bad9db999abe2453e451ebfff585944b 100644
--- a/README
+++ b/README
@@ -18,7 +18,7 @@ * KDF_GOSTR3411_2012_256 KDF function (RFC 7836)
 * GOST R 34.12-2015 128-bit block cipher Кузнечик (Kuznechik) (RFC 7801)
 * GOST R 34.12-2015 64-bit block cipher Магма (Magma)
 * GOST R 34.13-2015 padding methods
-* MGM AEAD mode for 64 and 128 bit ciphers
+* MGM AEAD mode for 64 and 128 bit ciphers (Р 1323565.1.026–2019)
 * TLSTREE keyscheduling function
 * ESPTREE/IKETREE (IKE* is the same as ESP*) keyscheduling function
 * PRF_IPSEC_PRFPLUS_GOSTR3411_2012_{256,512} and generic prf+ functions