@article{IIGUM_2011_4_3_a14,
     author = {A. E. Atkin and G. P. Atkina},
     title = {A uniqueness theorem for {Sturm--Liouville} equations with a spectral parameter rationally contained in the boundary condition},
     journal = {The Bulletin of Irkutsk State University. Series Mathematics},
     pages = {158--170},
     publisher = {mathdoc},
     volume = {4},
     number = {3},
     year = {2011},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IIGUM_2011_4_3_a14/}
}