LUU, D. Q. Representation theorems for multi-valued (regular) $L^1$-amarts. MATHEMATICA SCANDINAVICA, [S. l.], v. 58, p. 5–22, 1986. DOI: 10.7146/math.scand.a-12125. Disponível em: https://www.mscand.dk/article/view/12125. Acesso em: 2 may. 2024.