http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Erdwiss. FB -- HANDBOOK optics -- Handbook of Optics.Eds.:Walter G.Driscoll,William -- Vaughan. - New York:McGraw-Hill(1978).Getr.Pag. 8° -- Me