@article{MZM_2017_101_5_a12,
     author = {Z. S. Aliyev and A. G. Geidarov},
     title = {Spectral {Properties} of the {Sturm--Liouville} {Operator} with $\delta${-Potential} and with {Spectral} {Parameter} in the {Boundary} {Condition}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {792--797},
     publisher = {mathdoc},
     volume = {101},
     number = {5},
     year = {2017},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2017_101_5_a12/}
}