TY - BOOK ID - 127759094 TI - Geometrical theory of diffraction in electromagnetics. 1 : Geometrical optics. PY - 1978 PB - Urbana : University of Illinois. Electromagnetics laboratory, DB - UniCat UR - https://www.unicat.be/uniCat?func=search&query=sysid:127759094 AB - ER -