DIKRANJAN, Dikran; LEWIS, Wayne; LOTH, Peter; MADER, Adolf. Fat Delta 2: functorial subgroups of topological abelian groups. Topology Proceedings, [S. l.], v. 61, p. 269–304, 2022. Disponível em: https://www.topologyproceedings.org/index.php/tp/article/view/90. Acesso em: 30 jun. 2026.