%% copy, distribute and/or modify this document under the terms of the GNU Free
%% Documentation License, Version 1.3 or any later version published by the
%% Free Software Foundation; with the Invariant Sections being "Un preambolo",
%% copy, distribute and/or modify this document under the terms of the GNU Free
%% Documentation License, Version 1.3 or any later version published by the
%% Free Software Foundation; with the Invariant Sections being "Un preambolo",