@article{TRSPY_1965_77_a8,
     author = {P. I. Lizorkin and S. M. Nikol'skii},
     title = {Classification of differentiable functions on the basis of spaces with dominant mixed derivatives},
     journal = {Informatics and Automation},
     pages = {143--167},
     publisher = {mathdoc},
     volume = {77},
     year = {1965},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_1965_77_a8/}
}