@@ 1696,7 1696,7 @@ the Python language.
We usually package only the latest version of a given free software
project. But sometimes, for instance for incompatible library versions,
two (or more) versions of the same package are needed. These require different
-Scheme variable names. We use the name as defined in @ref {Package Naming}
+Scheme variable names. We use the name as defined in @ref{Package Naming}
for the most recent version; previous versions use the same name, suffixed
by @code{-} and the smallest prefix of the version number that may
distinguish the two versions.