@article{FPM_1996_2_2_a0,
     author = {J. Gilewicz and I. A. Shevchuk},
     title = {Comonotone approximation},
     journal = {Fundamentalʹna\^a i prikladna\^a matematika},
     pages = {319--363},
     publisher = {mathdoc},
     volume = {2},
     number = {2},
     year = {1996},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FPM_1996_2_2_a0/}
}