%0 Journal Article %A A. V. Shanin %T Exitation of the wave field in the triangular domain with impedance boundary conditions %J Zapiski Nauchnykh Seminarov POMI %D 1998 %P 300-318 %V 250 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_1998_250_a19/ %G ru %F ZNSL_1998_250_a19