When talking about interfaces, use the interface names, not the names
of the implementation classes. (Remove the "Impl" from two names.)
diff --git a/Doc/lib/xmlsax.tex b/Doc/lib/xmlsax.tex
index 063c993..c5483ac 100644
--- a/Doc/lib/xmlsax.tex
+++ b/Doc/lib/xmlsax.tex
@@ -59,7 +59,7 @@
an explicit notion of interface, they are formally introduced as
classes, but applications may use implementations which do not inherit
from the provided classes. The \class{InputSource}, \class{Locator},
-\class{AttributesImpl}, \class{AttributesNSImpl}, and
+\class{Attributes}, \class{AttributesNS}, and
\class{XMLReader} interfaces are defined in the module
\refmodule{xml.sax.xmlreader}. The handler interfaces are defined in
\refmodule{xml.sax.handler}. For convenience, \class{InputSource}