Singular Coverings of Toposes - Bunge, Marta; Funk, Jonathon; SpringerLink (Online service) (Berlin, Heidelberg : Springer Berlin Heidelberg, 2006)
Keywords: Mathematics; Algebra; Cell aggregation -- Mathematics; Mathematics; Category Theory, Homological Algebra; Manifolds and Cell Complexes (incl. Diff.Topology).; Order, Lattices, Ordered Algebraic Structures