diff --git a/doc/guide/admin/intro.sdf b/doc/guide/admin/intro.sdf
index 3c93bac7341bed7f6d0061d4aeaaceae779866a8..1f9fe8a3368768e84feeeb16e4f2c1ecd6aa8f46 100644
--- a/doc/guide/admin/intro.sdf
+++ b/doc/guide/admin/intro.sdf
@@ -53,8 +53,10 @@ it is a lightweight protocol for accessing directory services,
 specifically {{TERM:X.500}}-based directory services.  LDAP runs
 over {{TERM:TCP}}/{{TERM:IP}} or other connection oriented transfer
 services.  The nitty-gritty details of LDAP are defined in
-{{REF:RFC2251}} "The Lightweight Directory Access Protocol (v3)."
-This section gives an overview of LDAP from a user's perspective.
+{{REF:RFC2251}} "The Lightweight Directory Access Protocol (v3)"
+and other documents comprising the technical specification
+{{REF:RFC3377}}.  This section gives an overview of LDAP from a
+user's perspective.
 
 {{What kind of information can be stored in the directory?}} The
 LDAP information model is based on {{entries}}. An entry is a
diff --git a/doc/guide/preamble.sdf b/doc/guide/preamble.sdf
index a347a723bd2abb78b01a37b5263742b540ac11e5..f2aa9531b90d2b627c3bd18bd35cd4c503fad35c 100644
--- a/doc/guide/preamble.sdf
+++ b/doc/guide/preamble.sdf
@@ -169,6 +169,7 @@ I-D|Internet Draft
 IP|Internet Protocol
 IPSEC|Internet Protocol Security
 ITS|Issue Tracking System
+Kerberos|Kerberos Authentication Service
 LBER|Lightweight BER
 LDAP|Lightweight Directory Access Protocol
 LDIF|LDAP Data Interchange Format
@@ -218,4 +219,7 @@ RFC2831|PS|Using Digest Authentication as a SASL Mechanism|ftp://ftp.isi.edu/in-
 RFC2849|PS|The LDAP Data Interchange Format|ftp://ftp.isi.edu/in-notes/rfc2849.txt
 RFC3088|X|OpenLDAP Root Service|ftp://ftp.isi.edu/in-notes/rfc3088.txt
 RFC3296|PS|Named Subordinate References in LDAP|ftp://ftp.isi.edu/in-notes/rfc3296.txt
+RFC3377|PS|Lightweight Directory Access Protocol (v3): Technical Specification
+RFC3383|BCP|Internet Assigned Numbers Authority (IANA) Considerations for the Lightweight Directory Access Protocol (LDAP)
+RFC3384|INFO|Lightweight Directory Access Procotol (version 3) Replication Requirements
 !endblock