@article{ISU_2008_8_1_a5,
     author = {V. A. Yurko},
     title = {On inverse nodal and spectral problems for boundary value problems with discontinuity conditions inside the interval},
     journal = {Izvestiya of Saratov University. Mathematics. Mechanics. Informatics},
     pages = {31--35},
     publisher = {mathdoc},
     volume = {8},
     number = {1},
     year = {2008},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ISU_2008_8_1_a5/}
}