Geodesic
Strictly hyperbolic diffraction problems
Differencialʹnye uravneniâ, Tome 14 (1978) no. 1, pp. 30-38 
V. M. Isakov. Strictly hyperbolic diffraction problems. Differencialʹnye uravneniâ, Tome 14 (1978) no. 1, pp. 30-38. http://geodesic.mathdoc.fr/item/DE_1978_14_1_a3/
@article{DE_1978_14_1_a3,
     author = {V. M. Isakov},
     title = {Strictly hyperbolic diffraction problems},
     journal = {Differencialʹnye uravneni\^a},
     pages = {30--38},
     year = {1978},
     volume = {14},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1978_14_1_a3/}
}
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IS  - 1
UR  - http://geodesic.mathdoc.fr/item/DE_1978_14_1_a3/
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