INDRIULIONIS, Audrius. Dealing with nonresponse in business surveys. Lietuvos matematikos rinkinys, [S. l.], v. 43, n. spec., p. 480–485, 2003. DOI: 10.15388/LMR.2003.32509. Disponível em: https://www.journals.vu.lt/LMR/article/view/32509.. Acesso em: 11 may. 2024.