@article{MZM_1989_45_4_a12,
     author = {H. S. Mustafaev and V. S. Shulman},
     title = {An estimate of the norms of inner derivation in some operator algebras},
     journal = {Matemati\v{c}eskie zametki},
     pages = {105--110},
     publisher = {mathdoc},
     volume = {45},
     number = {4},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1989_45_4_a12/}
}