http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Geometry of Einstein's unified field theory
HLAVATY, Václav: -- Geometry of Einstein's unified field theory. -- Groningen:Noordhoff (1957).XXXII, -- 341 S. 8° -- 1962:555. -- P..