@article{ZNSL_1986_156_a10,
     author = {P. V. Krauklis and N. V. Zepelev and L. A. Krauklis},
     title = {On the asymptotic approach to the wave distant propagation problem},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {125--135},
     publisher = {mathdoc},
     volume = {156},
     year = {1986},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1986_156_a10/}
}