@article{MZM_1972_12_6_a1,
     author = {N. S. Bakhvalov},
     title = {A lower bound for the asymptotic characteristics of classes of functions with dominating mixed derivative},
     journal = {Matemati\v{c}eskie zametki},
     pages = {655--664},
     publisher = {mathdoc},
     volume = {12},
     number = {6},
     year = {1972},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1972_12_6_a1/}
}