has clause has website homepage Platform unrestricted Number of installations unrestricted Number of users unrestricted Time for use unrestricted Distribution unrestricted License without restrictions on derivatives GNU Project Free License Type Attribution required Vendor-specific License SBGN Open License with Attribution http://www.sbgn.org/About Allyson Lister Systems Biology Graphical Notation Open License with Attribution The SBGN Open License with Attribution is a very simple statement of openness for the SBGN standard and related resources available on its website. No one—not the principal investigators, nor the SBGN Editors, nor the members of the SBGN Scientific Committee, nor the funding agencies or anyone else—owns SBGN; it is a free and open community effort that extends beyond any single group, and they view themselves only as organizers and fellow developers. http://www.sbgn.org/About, accessed 12July 2016.