@article{ZNSL_1974_42_a12,
     author = {E. L. Silakov},
     title = {On the {Application} of the {Ray} {Method} for {Calculation} of {Complex} {Eigenvalues}},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {228--235},
     publisher = {mathdoc},
     volume = {42},
     year = {1974},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1974_42_a12/}
}