@article{MM_2011_23_3_a6,
     author = {S. V. Alyukov},
     title = {Approximation of step functions in problems of mathematical modeling},
     journal = {Matemati\v{c}eskoe modelirovanie},
     pages = {75--88},
     publisher = {mathdoc},
     volume = {23},
     number = {3},
     year = {2011},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MM_2011_23_3_a6/}
}