@article{UZKU_2017_159_1_a4,
     author = {M. O. Katanaev},
     title = {Normal coordinates in affine geometry},
     journal = {U\v{c}\"enye zapiski Kazanskogo universiteta. Seri\^a Fiziko-matemati\v{c}eskie nauki},
     pages = {47--63},
     publisher = {mathdoc},
     volume = {159},
     number = {1},
     year = {2017},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/UZKU_2017_159_1_a4/}
}