@article{IVM_2014_2_a1,
     author = {B. E. Kanguzhin and D. B. Nurakhmetov and N. E. Tokmagambetov},
     title = {Laplace operator with $\delta$-like potentials},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {9--16},
     publisher = {mathdoc},
     number = {2},
     year = {2014},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_2014_2_a1/}
}