@article{AA_1992_4_4_a3,
     author = {G. V. Galunov and V. L. Oleinik},
     title = {Analysis of the dispersion equation for a~negative {Dirac} ``comb''},
     journal = {Algebra i analiz},
     pages = {94--109},
     publisher = {mathdoc},
     volume = {4},
     number = {4},
     year = {1992},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AA_1992_4_4_a3/}
}