@article{MZM_2005_78_1_a14,
     author = {A. S. Kostenko},
     title = {Similarity of {Indefinite} {Sturm--Liouville} {Operators} with {Singular} {Potential} to a {Self-Adjoint} {Operator}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {147--151},
     publisher = {mathdoc},
     volume = {78},
     number = {1},
     year = {2005},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2005_78_1_a14/}
}