@article{TRSPY_1972_117_a0,
     author = {O. V. Besov},
     title = {The behavior of differentiable functions on a nonsmooth surface},
     journal = {Informatics and Automation},
     pages = {3--10},
     publisher = {mathdoc},
     volume = {117},
     year = {1972},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_1972_117_a0/}
}