+Latex invoice template based on a template from eBills
+<http://ebills.sourceforge.net/> by Mark Asplen-Taylor <mark@asplen.co.uk>,
+licensed under the terms fo the GNU GPL.
+
+Contains "Request Tracker" <http://www.bestpractical.com/rt/> by Jesse
+Vincent <jesse@bestpractical.com> licensed under the terms of the GNU GPL.
+
+Contains "SQL Ledger" <http://www.sql-ledger.com/> by DWS Systems Inc. and
+contributors licensed under the terms of the GNU GPL.
+