1.1 --- a/doc-src/manual.bib	Wed Feb 14 10:06:12 2007 +0100
     1.2 +++ b/doc-src/manual.bib	Wed Feb 14 10:06:13 2007 +0100
     1.3 @@ -1507,3 +1507,8 @@
     1.4    series        = LNCS,
     1.5    volume        = 2152,
     1.6    year          = 2001}
     1.7 +
     1.8 +@unpublished{classes_modules,
     1.9 +  title         = {ML Modules and Haskell Type Classes: A Constructive Comparison},
    1.10 +  author        = {Stefan Wehr et. al.}
    1.11 +}