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-rw-r--r--src/ProjectionTangential.H5
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diff --git a/src/ProjectionTangential.H b/src/ProjectionTangential.H
index 77c10d7..07ddaf9 100644
--- a/src/ProjectionTangential.H
+++ b/src/ProjectionTangential.H
@@ -1,3 +1,8 @@
+//
+// Copyright 2006 Johannes Hofmann <Johannes.Hofmann@gmx.de>
+//
+// This software may be used and distributed according to the terms
+// of the GNU General Public License, incorporated herein by reference.
#ifndef PROJECTIONTANGENTIAL_H
#define PROJECTIONTANGENTIAL_H