@article{MZ_1962__79_170079,
     author = {Detlef Laugwitz},
     title = {\"Uber {Eilinien} im {Gro{\ss}en} in der zentralaffinen {Differentialgeometrie.}},
     journal = {Mathematische Zeitschrift},
     pages = {425--438},
     publisher = {mathdoc},
     volume = {79},
     year = {1962},
     zbl = {0106.36001},
     url = {http://geodesic.mathdoc.fr/item/MZ_1962__79_170079/}
}