Daugirdienė , Aušra, Algimantas Švegžda, Henrikas Vaitkevičius, and Vilius Viliūnas. “Constancy of Colour Perception: Background and Contrast Influence”. Psichologija 21 (December 18, 2000): 50–61. Accessed October 25, 2025. https://test.zurnalai.vu.lt/psichologija/article/view/9011.