@article{MZ_1986__191_173685,
     author = {Siegfried Steiner},
     title = {Variationsprobleme mit einem {Levi-Civita} {Zusammenhang.}},
     journal = {Mathematische Zeitschrift},
     pages = {417--428},
     publisher = {mathdoc},
     volume = {191},
     year = {1986},
     zbl = {0563.53017},
     url = {http://geodesic.mathdoc.fr/item/MZ_1986__191_173685/}
}