diff --git a/minmax/example/minmax_ex.cpp b/minmax/example/minmax_ex.cpp
index 36cd34e..d806709 100644
--- a/minmax/example/minmax_ex.cpp
+++ b/minmax/example/minmax_ex.cpp
@@ -1,3 +1,8 @@
+//  (C) Copyright Herve Bronnimann 2004.
+//  Use, modification and distribution are subject to the
+//  Boost Software License, Version 1.0. (See accompanying file
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
 #include <list>
 #include <algorithm>
 #include <cstdlib>
diff --git a/minmax/example/minmax_timer.cpp b/minmax/example/minmax_timer.cpp
index e9cbebd..0ab51a8 100644
--- a/minmax/example/minmax_timer.cpp
+++ b/minmax/example/minmax_timer.cpp
@@ -1,3 +1,8 @@
+//  (C) Copyright Herve Bronnimann 2004.
+//  Use, modification and distribution are subject to the
+//  Boost Software License, Version 1.0. (See accompanying file
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
 #include <utility>
 #include <functional>
 #include <algorithm>
diff --git a/minmax/test/minmax_element_test.cpp b/minmax/test/minmax_element_test.cpp
index 633cc47..96844b6 100644
--- a/minmax/test/minmax_element_test.cpp
+++ b/minmax/test/minmax_element_test.cpp
@@ -1,3 +1,8 @@
+//  (C) Copyright Herve Bronnimann 2004.
+//  Use, modification and distribution are subject to the
+//  Boost Software License, Version 1.0. (See accompanying file
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
 #include <utility>
 #include <functional>
 #include <algorithm>
diff --git a/minmax/test/minmax_test.cpp b/minmax/test/minmax_test.cpp
index aae7eda..7d4b823 100644
--- a/minmax/test/minmax_test.cpp
+++ b/minmax/test/minmax_test.cpp
@@ -1,3 +1,8 @@
+//  (C) Copyright Herve Bronnimann 2004.
+//  Use, modification and distribution are subject to the
+//  Boost Software License, Version 1.0. (See accompanying file
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
 #include <utility>
 #include <functional>