http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
a record of the periodicals of the world, from the seventeenth century to the present day, in British libraries
ed. for the Council of the British Union-Catalogue of Periodicals by James D. Stewart with Muriel E. Hammond and Erwin Saenger.