ASTALA, K.; VALA, K. On the measurability of vector valued functions. Annales Fennici Mathematici, [S. l.], v. 5, n. 1, p. 121–124, 1980. DOI: 10.5186/aasfm.1980.0502. Disponível em: https://afm.journal.fi/article/view/134373. Acesso em: 25 nov. 2024.