1. F.D. Ancel, The locally flat approximation of cell-like embedding relations, Ph.D. Thesis, University of Wisconsin, Madison, 1976.
2. CAT(0) reflection manifolds;Ancel;Stud. Adv. Math.,1997
3. Compact contractible n-manifolds have arc spines (n⩾ 5);Ancel;Pacific J. Math.,1995
4. Z-compactifications of open manifolds;Ancel;Topology,1999
5. F.D. Ancel, L.C. Siebenmann, The construction of homogeneous homology manifolds, Abstracts Amer. Math. Soc. 6 (1985) Abstract Number 816-57-72.