Segolle, Maelle, et al. “Etching Method to Create Random Speckle Pattern on Semi-Solid Cast A356 Aluminium for DIC in-Situ Strain Measurement”. Journal of Casting & Materials Engineering, vol. 1, no. 1, Mar. 2017, p. 33, https://doi.org/10.7494/jcme.2017.1.1.33.