@article{MZM_2002_72_2_a12,
     author = {M. M. Faddeev and R. G. Shterenberg},
     title = {On the {Similarity} of {Some} {Differential} {Operators} to {Self-Adjoint} {Ones}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {292--302},
     publisher = {mathdoc},
     volume = {72},
     number = {2},
     year = {2002},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2002_72_2_a12/}
}