@article{DAN_1965_161_2_a3,
     author = {M. G. Gasymov},
     title = {Determination of a {Sturm{\textendash}Liouville} equation with a singularity by two spectra},
     journal = {Doklady Akademii Nauk},
     pages = {274--276},
     year = {1965},
     volume = {161},
     number = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1965_161_2_a3/}
}