- Kazuhiro Kawamura, Recent Progress in General Topology III, 2014, 639

- Susmit Bagchi, “Interactions between Homotopy and Topological Groups in Covering (C, R) Space Embeddings”, Symmetry, 13, № 8, 2021, 1421

- Michael G. Cowling, Ville Kivioja, Enrico Le Donne, Sebastiano Nicolussi Golo, Alessandro Ottazzi, “From homogeneous metric spaces to Lie groups”, Comptes Rendus. Mathématique, 362, № G9, 2024, 943

- Facundo Mémoli, Ling Zhou, “Persistent homotopy groups of metric spaces”, J. Topol. Anal., 17, № 05, 2025, 1481

- Conrad Plaut, “Weakly Chained Spaces”, Topology and its Applications, 2025, 109651
