@article{VMUMM_1987_1_a7,
     author = {\`E. M. Galeev},
     title = {Estimates for widths, in the sense of {Kolmogorov,} of classes of periodic functions of several variables with small-order smoothness},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {26--30},
     publisher = {mathdoc},
     number = {1},
     year = {1987},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_1987_1_a7/}
}