@article{FPM_1998_4_2_a4,
     author = {V. V. Dubrovskii and A. S. Velikikh},
     title = {{\CYRT}he theorem of restoration simmetrical potential in the reverse problem of spectral analysis for operator of {Sturm--Liouville}},
     journal = {Fundamentalʹna\^a i prikladna\^a matematika},
     pages = {535--541},
     publisher = {mathdoc},
     volume = {4},
     number = {2},
     year = {1998},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FPM_1998_4_2_a4/}
}