http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
GERRITSEN,Antonie Hermanus: -- The Mechanics of cohesive powders. - Groningen 1982. 152 S.m.Fig.u.Tab. 8° -- Groningen,naturwiss.Diss.1982. -- 1982! -- Kk.