@article{MZM_2011_89_5_a14,
     author = {V. E. Nazaikinskii},
     title = {Degenerate {Wave} {Equation} with {Localized} {Initial} {Data:} {Asymptotic} {Solutions} {Corresponding} to {Various} {Self-Adjoint} {Extensions}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {797--800},
     publisher = {mathdoc},
     volume = {89},
     number = {5},
     year = {2011},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2011_89_5_a14/}
}