TY - JOUR ID - ffos:2140 TI - Determination of Damage in Transparent Optically Active Materials by Using Polarized Light and the Sobel Operator AU - Galić, Silvija AU - Špiranović-Kanižaj, Dubravka AU - Baumgartner, Alfonzo DP - DABAR (Digitalni akademski arhivi i repozitoriji) ER -