@article{MZM_1974_16_4_a4,
     author = {I. A. Pakhnutov},
     title = {Stability of spline approximation and the restoration of grid functions},
     journal = {Matemati\v{c}eskie zametki},
     pages = {537--544},
     publisher = {mathdoc},
     volume = {16},
     number = {4},
     year = {1974},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1974_16_4_a4/}
}