SAWYER, E. T.; URIARTE-TUERO, I. Control of the bilinear indicator cube testing property. Annales Fennici Mathematici, [S. l.], v. 46, n. 2, p. 1105–1122, 2021. Disponível em: https://afm.journal.fi/article/view/111181. Acesso em: 6 dec. 2021.