@article{TRSPY_1968_96_a16,
     author = {V. P. Il'in},
     title = {Conditions of validity of inequalities between $L_{p}$-norms of partial derivatives of functions of several variables},
     journal = {Informatics and Automation},
     pages = {205--242},
     publisher = {mathdoc},
     volume = {96},
     year = {1968},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_1968_96_a16/}
}