@article{MZ_1964__86_170343,
     author = {Heinz Dieter Dombrowski and K. Horneffer},
     title = {Die {Differentialgeometrie} des {Galileischen} {Relativit\"atsprinzips.}},
     journal = {Mathematische Zeitschrift},
     pages = {291--311},
     publisher = {mathdoc},
     volume = {86},
     year = {1964},
     zbl = {0127.14202},
     url = {http://geodesic.mathdoc.fr/item/MZ_1964__86_170343/}
}