--- a/inst/vrml_frame.m
+++ b/inst/vrml_frame.m
@@ -1,15 +1,17 @@
-## Copyright (C) 2002 Etienne Grossmann.  All rights reserved.
+## Copyright (C) 2002 Etienne Grossmann <etienne@cs.uky.edu>
 ##
-## This program is free software; you can redistribute it and/or modify it
-## under the terms of the GNU General Public License as published by the
-## Free Software Foundation; either version 2, or (at your option) any
-## later version.
+## This program is free software; you can redistribute it and/or modify it under
+## the terms of the GNU General Public License as published by the Free Software
+## Foundation; either version 3 of the License, or (at your option) any later
+## version.
 ##
-## This is distributed in the hope that it will be useful, but WITHOUT
+## This program is distributed in the hope that it will be useful, but WITHOUT
 ## ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-## FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-## for more details.
+## FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
+## details.
 ##
+## You should have received a copy of the GNU General Public License along with
+## this program; if not, see <http://www.gnu.org/licenses/>.
 
 ##       v = vrml_frame (t, r, ...)
 ##  
@@ -23,10 +25,6 @@
 ## "col"   : 3 or 3x3 : Color of branches (may be stacked vertically) <[3 4 9]/10>
 ## "hcol"  : 3 or 3x3 : Color of head     (may be stacked vertically) <col>
 ##                                                  
-
-## Author:        Etienne Grossmann <etienne@isr.ist.utl.pt>
-## Last modified: Setembro 2002
-
 
 function v = vrml_frame (varargin)