TY - BOOK ED - International Symposium on the Perception and Application of Flashing Lights ED - National Illumination Committee of Great Britain ED - London. TI - The Perception and application of flashing lights: an international symposium held at Imperial College, London, under the joint auspices of the National Illumination Committee of Great Britain and the Applied Optics Section, Imperial College, on 19- SN - 0852741391 : U1 - 535.8 PY - 1971/// CY - London PB - Adam Higher KW - Visual perception KW - Congresses KW - Light KW - Signals and signaling N1 - Includes bibliographical references and index ER -