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+NOTE: This is the first alpha release of project HELM.
+
+HELM (Hypertextual Electronic Library of Mathematics) is a project aimed
+at the creation of tools for the development and exploitation of a huge
+distributed library of formal mathematical knowledge. This package holds
+the base DTDs and XSLT stylesheets developed by the members of project
+HELM.
+
+For more information see http://www.cs.unibo.it/helm