537.5
Bri
W
Brillouin, Leon, 1889-
    Wave propagation in periodic structures
lectric filters and crystal lattices. 1a. ed.
New York, London, KcGravr-Hill’book company,
      xil, 247 p.- 21 cm, (Half-title :International series in pure and applied physics. L.A,
Du Bridge, consulting ed.).