@article{MAN_1929__101_159365,
     author = {T.Y. Thomas},
     title = {Determination of affine and metric spaces by their differential invariants},
     journal = {Mathematische Annalen},
     pages = {713--728},
     publisher = {mathdoc},
     volume = {101},
     year = {1929},
     zbl = {55.1028.01},
     url = {http://geodesic.mathdoc.fr/item/MAN_1929__101_159365/}
}