This journal uses the LOCKSS and CLOCKSS systems to create a distributed filing system among participating libraries and allows these libraries to create permanent archives of journals for preservation and restoration purposes. All content in the CLOCKSS Archives and the LOCKSS Global Network is stored with the publisher's express permission, secured by written contract or through an online consent statement. We work closely with LOCKSS network implementers to facilitate the development of governance and legal requirements commensurate with the content involved, jurisdiction, rights, and affordability of access.