@article{TM_1983_161_a9,
     author = {G. G. Magaril-Il'yaev},
     title = {Inequalities for derivatives, and duality},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {183--194},
     year = {1983},
     volume = {161},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TM_1983_161_a9/}
}