LINDSTRÖM, Mikael; RYAN, R. A. Applications of Ultraproducts to Infinite Dimensional Holomorphy. Mathematica Scandinavica, Berkeley, CA, United States, v. 71, p. 229–242, 1992. DOI: 10.7146/math.scand.a-12424. Disponível em: https://journals.msp.org/mscand/article/view/1227. Acesso em: 25 jul. 2026.