@article{MZM_2011_89_1_a13,
     author = {Yu. S. Volkov and V. L. Miroshnichenko},
     title = {Approximation of {Derivatives} by {Jumps} of {Interpolating} {Splines}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {127--130},
     publisher = {mathdoc},
     volume = {89},
     number = {1},
     year = {2011},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2011_89_1_a13/}
}