@article{DE_2000_36_5_a9,
     author = {V. A. Il'in and E. I. Moiseev},
     title = {Uniqueness of the solution of a mixed problem for the wave equation with nonlocal boundary conditions},
     journal = {Differencialʹnye uravneni\^a},
     pages = {656--661},
     publisher = {mathdoc},
     volume = {36},
     number = {5},
     year = {2000},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_2000_36_5_a9/}
}