Multifacet GEMS is released under the GNU General Public Licence (GPL). We ask that you register with us in order to access the download directory. Registration information will not be shared with any other party. In addition, we ask that you adhere to the following requests if you download and use this software:

• If your use of this software contributes to a published paper, we request that you (1) cite our summary paper that appears on this website and (2) e-mail a citation for your published paper to .
• If you redistribute derivatives of this software, we request that you notify us and either (1) ask people to register with us at this website or (2) collect registration information and periodically send it to us.