--- /dev/null
+The original StoGO code is:
+
+Copyright (c) 1998 by S. Zertchaninov and K. Madsen.
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+----------------------------------------------------------------------
+
+The StoGO source code on the authors' web site has no copyright or
+license information, but I (Steven G. Johnson) contacted the author
+K. Madsen for clarification and he gave me permission to distribute
+it under the MIT license above. See the correspondence below:
+
+----------------------------------------------------------------------
+Date: Fri, 24 Aug 2007 10:46:09 +0200
+From: Kaj Madsen <km@imm.dtu.dk>
+To: stevenj@math.mit.edu
+Subject: RE: open source license for StoGO software?
+
+The MIT licence is ok with me, and so is your copyright suggestion.
+
+Kaj Madsen.
+
+-----Original Message-----
+From: Steven G. Johnson [mailto:stevenj@fftw.org]
+Sent: 23. august 2007 22:23
+To: Kaj Madsen
+Subject: RE: open source license for StoGO software?
+
+On Thu, 23 Aug 2007, Kaj Madsen wrote:
+> Many thanks for your mail. You can definitely consider the software as
+> open source, please use it as you like, however please refer to us if
+> you publish results based on the software.
+>
+> I am now in a heavy administrative position as a Head of Department
+> (has been since 1998, therefore I never really followed up on this).
+> The paper was never published, however I am attaching two fdf-files,
+> one with the paper, one with some descriptions of the code. I hope
+> this makes sense, otherwise please don't hesitate to contact me again.
+
+Thanks so much for your response!
+
+To be open source it needs some specific open-source license to specify
+the permissions in legal terms. The simplest open-source license is
+probably the MIT license, is this okay?
+
+ http://opensource.org/licenses/mit-license.php
+
+Also, I need to know who the authors are for the copyright statement.
+Should I list it as:
+ Copyright (c) 1998 by S. Zertchaninov and K. Madsen ?
+
+Thanks again! I will definitely cite it if I publish any results based
+on StoGO! (It's one of the few public global-optimization programs that
+is able to exploit gradient information.)
+
+Regards,
+Steven G. Johnson
K. Madsen, S. Zertchaninov, and A. Zilinskas, "Global Optimization
using Branch-and-Bound," Submitted to the Journal of Global
- Optimization, 1998. [ does not seem to have been published? ]
+ Optimization, 1998.
+ [ never published, but preprint is included as paper.pdf ]
S. Zertchaninov and K. Madsen, "A C++ Programme for Global Optimization,"
IMM-REP-1998-04, Department of Mathematical Modelling,
Technical University of Denmark, DK-2800 Lyngby, Denmark, 1998.
+ [ included as techreport.pdf ]