Retroreflection definition and measurement

by International Commission on Illumination.

Upravlenie opticheskim luchom v prostranstve

by I︠U︡riĭ Konstantinovich Rebrin

Guide to the properties and uses of retroreflectors at night

by International Commission on Illumination.

Rāingān kānwičhai rư̄ang khō̜mphiutœ̄ chūai kānsō̜n wichā th...

by Chulīphō̜n Wongthawatnukūn

Beam deflection and scanning technologies

by Gerald F. Marshall, Leo Beiser