1. Lusternik–Schnirelmann category for simplicial complexes;Aaronson;Ill. J. Math.,2013
2. Algebraic Topology of Finite Topological Spaces and Applications;Barmak,2011
3. Strong homotopy types, nerves and collapses;Barmak;Discrete Comput. Geom.,2012
4. B. Benedetti, F.H. Lutz, The dunce hat and a minimal non-extendably collapsible 3-ball, Electronic Geometry Models 2013.10.001 (2013).
5. Lusternik–Schnirelmann category and minimal coverings with contractible sets;Clapp;Manuscr. Math.,1987