@article{MZM_2018_104_4_a9,
     author = {N. F. Valeev and Ya. Sh. Il'yasov},
     title = {On an {Inverse} {Optimization} {Spectral} {Problem} and a {Corresponding} {Nonlinear} {Boundary-Value} {Problem}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {621--625},
     publisher = {mathdoc},
     volume = {104},
     number = {4},
     year = {2018},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2018_104_4_a9/}
}