http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
291.696 -- HANSON,Norwood Russell: -- The Concept of the positron.A philosophi -- cal analysis. - Cambridge:Clarendon Pr. -- 1963. IX,235 S.mit 8 Fig.8° -- 1965:854. Fe.