@article{MZM_2016_99_2_a2,
     author = {A. V. Arutyunov and S. E. Zhukovskii},
     title = {On {Surjective} {Quadratic} {Mappings}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {181--185},
     publisher = {mathdoc},
     volume = {99},
     number = {2},
     year = {2016},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2016_99_2_a2/}
}