On infinite induced crossed modules and the homotopy 2-type of mapping cones. Brown, Ronald; Wensley, Christopher D. — 1995 Theory and Applications of Categories [electronic only]
Computing crossed modules induced by an inclusion of a normal subgroup, with applications to homotopy 2-types. Brown, Ronald; Wensley, Christopher D. — 1996 Theory and Applications of Categories [electronic only]
Enumeration by stabilizer class of patterns with local restrictions. Morris, Ifor; Wensley, Christopher D. — 1996 The Electronic Journal of Combinatorics [electronic only]