Kruszka, L., W.K. Nowacki, and M. Wolna. “Strength and Fracture Analysis of Brittle Photoelastic Material. Static And Dynamic Tests”. Engineering Transactions 40, no. 3 (September 30, 1992): 343–362. Accessed March 19, 2026. https://et.ippt.gov.pl/index.php/et/article/view/1600.