@article{SM_1992_71_1_a6,
     author = {A. Yu. Shadrin},
     title = {On the approximation of~functions by interpolating splines defined on nonuniform nets},
     journal = {Sbornik. Mathematics},
     pages = {81--99},
     publisher = {mathdoc},
     volume = {71},
     number = {1},
     year = {1992},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1992_71_1_a6/}
}