@article{ZNSL_1992_203_a11,
     author = {N. S. Smirnova},
     title = {On the calculation of wave fields propagating in multilayered media},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {156--165},
     publisher = {mathdoc},
     volume = {203},
     year = {1992},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1992_203_a11/}
}