GYLYS, R. On estimates of regression coefficients in multivariate case. Lithuanian Mathematical Journal, [S. l.], v. 12, n. 4, p. 31–36, 1972. DOI: 10.15388/LMJ.1972.21150. Disponível em: https://www.journals.vu.lt/LMJ/article/view/21150.. Acesso em: 7 may. 2024.