BARNDORFF-NIELSEN, O. ,. P. K. Sufficient Data Reduction and Exponential Families. MATHEMATICA SCANDINAVICA, [S. l.], v. 22, p. 197–202, 1968. DOI: 10.7146/math.scand.a-10883. Disponível em: https://www.mscand.dk/article/view/10883. Acesso em: 2 may. 2024.