Minimal covers of the prisms and antiprisms
  This paper contains a classication of the regular minimal abstract polytopes that act as covers for the convex polyhedral prisms and antiprisms. It includes a detailed discussion of their topological structure, and completes the enumeration of such covers for convex uniform polyhedra. Additionally, this paper addresses related structural questions in the theory of string C-groups. 
Michael I. Hartley, Daniel Pellicer, Gordon Williams
math.CO