@article{ISU_2013_13_3_a7,
     author = {A. E. Fedoseev},
     title = {Necessary and sufficient conditions for the solvability of the inverse problem for {Sturm--Liouville} operators with a~nonintegrable singularity inside a~finite interval},
     journal = {Izvestiya of Saratov University. Mathematics. Mechanics. Informatics},
     pages = {59--64},
     publisher = {mathdoc},
     volume = {13},
     number = {3},
     year = {2013},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ISU_2013_13_3_a7/}
}