@article{DAN_1968_181_3_a6,
     author = {I. S. Kats},
     title = {The growth of the spectral functions of generalized second order boundary value problems with the boundary condition at a regular end point},
     journal = {Doklady Akademii Nauk},
     pages = {534--537},
     publisher = {mathdoc},
     volume = {181},
     number = {3},
     year = {1968},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1968_181_3_a6/}
}