http://hdl.handle.net/1969.1/98435 Fri, 15 Feb 2013 08:40:32 GMT 2013-02-15T08:40:32Z http://hdl.handle.net/1969.1/128791 Araucariac 2 Sun, 01 Jan 2012 00:00:00 GMT http://hdl.handle.net/1969.1/128791 2012-01-01T00:00:00Z