http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
The tree-body problem Earth-moon-spaceship
GROBNER, W[olfgang]. -- The tree-body problem Earth-moon-spaceship. -- By W.Gröbner and F[erdinand] Cap. <With 3 fig -- Wien:Springer 1959. S. 288-312. 8°[Kopft.] -- Aus:Astronautica acta.5. -- 1960:3030. -- Ho..