@article{DE_1974_10_3_a10,
     author = {Sh. A. Alimov and V. A. Il'in},
     title = {Conditions for the convergence of spectral decompositions that correspond to self-adjoint extensions of elliptic operators. {V.} {A} theorem on the uniform convergence of the spectral decomposition for a general second order elliptic operator},
     journal = {Differencialʹnye uravneni\^a},
     pages = {481--506},
     publisher = {mathdoc},
     volume = {10},
     number = {3},
     year = {1974},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1974_10_3_a10/}
}