@article{VYURU_2016_9_3_a11,
     author = {S. I. Kadchenko and S. N. Kakushkin},
     title = {Finding of values for sums of functional {Rayleigh--Schrodinger} series  for perturbed self-adjoint operators},
     journal = {Vestnik \^U\v{z}no-Uralʹskogo gosudarstvennogo universiteta. Seri\^a, Matemati\v{c}eskoe modelirovanie i programmirovanie},
     pages = {137--143},
     publisher = {mathdoc},
     volume = {9},
     number = {3},
     year = {2016},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VYURU_2016_9_3_a11/}
}