@article{IM2_1982_19_1_a7,
     author = {A. N. Tyurin},
     title = {A~local invariant of {a~Riemannian} manifold},
     journal = {Izvestiya. Mathematics },
     pages = {125--149},
     publisher = {mathdoc},
     volume = {19},
     number = {1},
     year = {1982},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1982_19_1_a7/}
}