@article{MZM_2003_74_6_a10,
     author = {B. V. Simonov},
     title = {On the {Element} of {Best} {Nonsymmetric} {Approximation} in {Spaces} with {Nonsymmetric} {Quasinorm}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {902--912},
     publisher = {mathdoc},
     volume = {74},
     number = {6},
     year = {2003},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2003_74_6_a10/}
}