00833nam0-22002891i-450-99000096209040332120040712164932.0000096209FED01000096209(Aleph)000096209FED0100009620920020001d--------km-y0itay50------baengSpectral Theory and Problems in Diffractionedited by M.Sh. BirmanNew YorkConsultants Bureau1968Topics in Mathematical Physics2Fisica matematicaFisica teorica530Birman,M.sH.345677ITUNINARICAUNIMARCBK99000096209040332120-068.001F8161FI1FI1Spectral Theory and Problems in Diffraction358185UNINA