Via copyright notice for release 4.0.1 of STk.
;;; Copyright (c) 1992 Xerox Corporation. ;;;; All Rights Reserved. ;;; ;;; Use, reproduction, and preparation of derivative works are permitted. ;;; Any copy of this software or of any derivative work must include the ;;; above copyright notice of Xerox Corporation, this paragraph and the ;;; one after it. Any distribution of this software or derivative works ;;; must comply with all applicable United States export control laws. ;;; ;;; This software is made available AS IS, and XEROX CORPORATION DISCLAIMS ;;; ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE ;;; IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR ;;; PURPOSE, AND NOTWITHSTANDING ANY OTHER PROVISION CONTAINED HEREIN, ANY ;;; LIABILITY FOR DAMAGES RESULTING FROM THE SOFTWARE OR ITS USE IS ;;; EXPRESSLY DISCLAIMED, WHETHER ARISING IN CONTRACT, TORT (INCLUDING ;;; NEGLIGENCE) OR STRICT LIABILITY, EVEN IF XEROX CORPORATION IS ADVISED ;;; OF THE POSSIBILITY OF SUCH DAMAGES.