@article{TIMM_1996_4_a9,
     author = {N. V. Baidakova},
     title = {Approximation of some functions by splines from nonlinear sets},
     journal = {Trudy Instituta matematiki i mehaniki},
     pages = {133--145},
     publisher = {mathdoc},
     volume = {4},
     year = {1996},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TIMM_1996_4_a9/}
}