Just for searching convenience:
Index: nfsd.8
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RCS file: /cvs/src/sbin/nfsd/nfsd.8,v
retrieving revision 1.17
diff -u -r1.17 nfsd.8
--- nfsd.8 3 Sep 2010 10:08:22 -0000 1.17
+++ nfsd.8 12 Jul 2014 15:06:38 -0000
@@ -98,7 +98,8 @@
server specification; see
.%T "Network File System Protocol Specification" ,
RFC 1094 and
-.%T "NFS: Network File System Version 3 Protocol Specification" .
+.%T "NFS: Network File System Version 3 Protocol Specification" ,
+RFC 1813.
.Sh EXIT STATUS
.Ex -std nfsd
.Sh SEE ALSO
