@article{MZM_2009_86_3_a8,
     author = {I. V. Kurbatova},
     title = {Banach {Algebras} {Associated} with {Linear} {Operator} {Pencils}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {394--401},
     publisher = {mathdoc},
     volume = {86},
     number = {3},
     year = {2009},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2009_86_3_a8/}
}