diff --git a/bip-hugonguyen-bsms.mediawiki b/bip-hugonguyen-bsms.mediawiki
index 95493aad..cb15d5bd 100644
--- a/bip-hugonguyen-bsms.mediawiki
+++ b/bip-hugonguyen-bsms.mediawiki
@@ -55,7 +55,7 @@ The Coordinator initiates the multisig setup. The Coordinator determines what ty
 
 ====Signer====
 
-The Signer is a participating member in the multisig. Its responsibilities include providing its key record -- which contains an Extended Public Key (XPUB) -- to the Coordinator, verifying that its XPUB is included in the descriptor record and persisting the descriptor record in its storage.
+The Signer is any software or hardware that controls the private keys and can sign using those keys. The Signer is a participating member in the multisig. Its responsibilities include providing its key record -- which contains an Extended Public Key (XPUB) -- to the Coordinator, verifying that its XPUB is included in the descriptor record and persisting the descriptor record in its storage.
 
 ===Setup Process===
 
@@ -390,5 +390,7 @@ Special thanks to Pavol Rusnak, Dmitry Petukhov, Christopher Allen, Craig Raw, R
 
 ==References==
 
-Original mailing list thread: https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2021-February/018385.html
+Related mailing list threads:
+* https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2021-February/018385.html
+* https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2021-April/018732.html