@article{DE_2004_40_7_a2,
     author = {L. S. Pulkina},
     title = {A {Nonlocal} {Problem} with {Integral} {Conditions} for a {Hyperbolic} {Equation}},
     journal = {Differencialʹnye uravneni\^a},
     pages = {887--892},
     publisher = {mathdoc},
     volume = {40},
     number = {7},
     year = {2004},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_2004_40_7_a2/}
}