Bloom, C.O & Kazari-Noff, N.D Short wave radiation problems in inhomogeneous media asymptotic solutions C.O. Bloom & N.D. Kazari-Noff - Berlin Springer 1976 - v 104 - Lecture notes in mathematics 522 . ISBN: 3540076980 Dewey Class. No.: 4.04+10.05+22 / BLOO