Kašuba, Romualdas, and Juozas Juvencijus Mačys. “Fifty Years of Lithuanian School Mathematical Olympiads”. Lietuvos matematikos rinkinys 41, no. spec. (December 17, 2001): 30–35. Accessed January 18, 2026. https://www.zurnalai.vu.lt/LMR/article/view/33179.