@article{DE_2003_39_4_a11,
     author = {S. S. Kharibegashvili},
     title = {A {Well-Posed} {Statement} of {Some} {Nonlocal} {Problems} for the {Wave} {Equation}},
     journal = {Differencialʹnye uravneni\^a},
     pages = {539--553},
     publisher = {mathdoc},
     volume = {39},
     number = {4},
     year = {2003},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_2003_39_4_a11/}
}