@article{DAN_1991_321_1_a1,
     author = {O. V. Matveev},
     title = {Approximation properties of interpolation $D^m$-splines},
     journal = {Doklady Akademii Nauk},
     pages = {14--18},
     publisher = {mathdoc},
     volume = {321},
     number = {1},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1991_321_1_a1/}
}