GLR reference added to Bison manual

[Paul Eggert]

The Bison manual should have a reference for people who want to read
more about GLR parsing.  Here's the best free one I know of, so I
installed this change.  If you know of a better, please feel free to
further improve this.

2003-01-06  Paul Eggert  <address@hidden>

        * doc/bison.texinfo (Generalized LR Parsing): Add a reference to
        the GLR paper of Scott, Johnstone and Hussain.

--- doc/bison.texinfo   29 Dec 2002 01:58:11 -0000      1.97
+++ doc/bison.texinfo   7 Jan 2003 06:38:02 -0000       1.98
@@ -5182,6 +5182,13 @@ structure should generally be adequate. 
 grammar, in particular, it is only slightly slower than with the default
 Bison parser.
 
+For a more detailed exposition of GLR parsers, please see: Elizabeth
+Scott, Adrian Johnstone and Shamsa Sadaf Hussain, Tomita-Style
+Generalised @acronym{LR} Parsers, Royal Holloway, University of
+London, Department of Computer Science, TR-00-12,
address@hidden://www.cs.rhul.ac.uk/research/languages/publications/tomita_style_1.ps},
+(2000-12-24).
+
 @node Stack Overflow
 @section Stack Overflow, and How to Avoid It
 @cindex stack overflow