@article{FPM_2014_19_5_a5,
     author = {G. G. Magaril-Il'yaev and K. Yu. Osipenko and E. O. Sivkova},
     title = {The best approximation of a~set whose elements are known approximately},
     journal = {Fundamentalʹna\^a i prikladna\^a matematika},
     pages = {127--141},
     publisher = {mathdoc},
     volume = {19},
     number = {5},
     year = {2014},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FPM_2014_19_5_a5/}
}