SYRETT , David. On the Threshold of Victory: Communications Intelligence and the Battle for Convoy HX-228, 7-12 March 1943. The Northern Mariner / Le marin du nord, [S. l.], v. 10, n. 3, p. 49–55, 2000. DOI: 10.25071/2561-5467.618. Disponível em: https://tnm.journals.yorku.ca/index.php/default/article/view/618. Acesso em: 11 dec. 2024.