@article{IVM_2003_8_a3,
     author = {Yu. Ya. Dobrosotskaya},
     title = {On an algorithm for approximation by step functions},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {28--36},
     publisher = {mathdoc},
     number = {8},
     year = {2003},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_2003_8_a3/}
}