@article{ZNSL_1986_156_a7,
     author = {A. P. Kachalov and M. M. Popov},
     title = {Application of {Gaussian} beam method to the computations of theoretical seisinograms},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {73--97},
     publisher = {mathdoc},
     volume = {156},
     year = {1986},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1986_156_a7/}
}