@article{ISU_2006_6_1_a2,
     author = {V. P. Kurdyumov},
     title = {Estimates for eigenfunctions and eigenvalues of an integral-differential operator},
     journal = {Izvestiya of Saratov University. Mathematics. Mechanics. Informatics},
     pages = {20--29},
     publisher = {mathdoc},
     volume = {6},
     number = {1},
     year = {2006},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ISU_2006_6_1_a2/}
}