@article{SEMR_2015_12_a65,
     author = {E. Yu. Derevtsov},
     title = {A difference approximation of the covariant derivative and other operators and geometric objects given in a {Riemannian} domain},
     journal = {Sibirskie \`elektronnye matemati\v{c}eskie izvesti\^a},
     pages = {973--990},
     publisher = {mathdoc},
     volume = {12},
     year = {2015},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/SEMR_2015_12_a65/}
}