@article{MZM_1996_60_3_a20,
     author = {Yu. V. Pokornyi and V. L. Pryadiev and A. Al-Obeid},
     title = {Oscillation properties of the spectrum of a~boundary value problem on a~graph},
     journal = {Matemati\v{c}eskie zametki},
     pages = {468--470},
     publisher = {mathdoc},
     volume = {60},
     number = {3},
     year = {1996},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1996_60_3_a20/}
}