@article{IVM_2009_2_a1,
     author = {G. A. Akishev},
     title = {The ortho-diameters of {Nikol'skii} and {Besov} classes in the {Lorentz} spaces},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {25--33},
     publisher = {mathdoc},
     number = {2},
     year = {2009},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_2009_2_a1/}
}