@article{MZM_2012_92_1_a15,
     author = {V. E. Nazaikinskii},
     title = {Phase {Space} {Geometry} for a {Wave} {Equation} {Degenerating} on the {Boundary} of the {Domain}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {153--156},
     publisher = {mathdoc},
     volume = {92},
     number = {1},
     year = {2012},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2012_92_1_a15/}
}