KLIMAVIČIUS, Gražvydas; KRAPAVICKAITĖ, Danutė; PLIKUSAS , Aleksandras. On regression estimators of the ratio and their applications. Lietuvos matematikos rinkinys, [S. l.], v. 37, n. I, p. 204–208 , 1997. DOI: 10.15388/LMD.1997.38214. Disponível em: https://test.zurnalai.vu.lt/LMR/article/view/38214. Acesso em: 27 oct. 2025.