@article{MM_1989_1_5_a4,
     author = {Yu. P. Pyt'ev},
     title = {Nonlinear reduction of measurement},
     journal = {Matemati\v{c}eskoe modelirovanie},
     pages = {44--59},
     publisher = {mathdoc},
     volume = {1},
     number = {5},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MM_1989_1_5_a4/}
}