@article{ZNSL_1999_259_a5,
     author = {A. Yu. Kokotov and P. Neittaanm\"aki and B. A. Plamenevskii},
     title = {Difraction on a cone: the asymptotics of the solutions near the vertex},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {122--144},
     publisher = {mathdoc},
     volume = {259},
     year = {1999},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1999_259_a5/}
}