@article{MZM_2000_67_2_a14,
     author = {T. Ya. Azizov and V. K. Kiriakidi},
     title = {Convexity and weak closedness of the image of operator balls under linear-fractional transformations},
     journal = {Matemati\v{c}eskie zametki},
     pages = {302--304},
     publisher = {mathdoc},
     volume = {67},
     number = {2},
     year = {2000},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2000_67_2_a14/}
}