1. J. Beiner, J. Kalthoff, Experimental determination of dynamic stress intensity factors by the method of shadow patterns, in: G.C. Sih (Ed.), Mechanics of Fracture, vol. VII, Pergamon Press, Oxford, 1980, pp. 281–330
2. On the determination of stress-optical constants by the method of reflected caustics;Theocaris;Appl. Phys.,1979
3. Distance measuring based on caustics;Theocaris;Appl. Opt.,1977
4. The end-values of distributed loads in half planes by caustics;Theocaris;J. Appl. Mech.,1978
5. C.P. Spyropoulos, Caustics at the tips of cracks along bimaterial interfaces. in: S.A. Paipetis, T.P. Philippidis (Eds.), Comp'90 Symposium on Advanced Composites in Emerging Technologies, AMATEC, 1991, pp. 152–162