http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
doctoral study and the postdoctoral experience in the United States
Committee on Doctoral and Postdoctoral Study in the United States.
Committee on Doctoral and Postdoctoral Study in the United States, Board on Mathematical Sciences, Commission on Physical Sciences, Mathematics, and Applications, National Research Council.