NIELSEN, M. M. Three pieces of the Piraean puzzle: towers M-T1, P-T1 and P-T2. Proceedings of the Danish Institute at Athens, [S. l.], n. 5, p. 75–88, 2007. Disponível em: https://tidsskrift.dk/pdia/article/view/19730. Acesso em: 3 dec. 2021.