Krikštolaitis, Ričardas, and Gražina Binkauskienė. “Cluster Analysis of Household Income and Expenditure”. Lietuvos matematikos rinkinys 40, no. spec. (December 18, 2000): 399–407. Accessed March 19, 2026. https://www.zurnalai.vu.lt/LMR/article/view/35201.