@article{MZM_2015_97_4_a9,
     author = {M. M. Khapaev and T. M. Khapaeva},
     title = {On the {Computation} of {Eigenfunctions} and {Eigenvalues} in the {Sturm--Liouville} {Problem}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {604--608},
     publisher = {mathdoc},
     volume = {97},
     number = {4},
     year = {2015},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2015_97_4_a9/}
}