A homotopy 2-groupoid from a fibration. Kamps, K.H.; Porter, T. — 1999 Homology, Homotopy and Applications
Higher dimensional Peiffer elements in simplicial commutative algebras. Arvasi, Z.; Porter, T. — 1997 Theory and Applications of Categories [electronic only]
Freeness conditions for 2-crossed modules and complexes. Mutlu, A.; Porter, T. — 1998 Theory and Applications of Categories [electronic only]
Applications of Peiffer pairings in the Moore complex of a simplicial group. Mutlu, A.; Porter, T. — 1998 Theory and Applications of Categories [electronic only]
Global actions, groupoid atlases and applications. Bak, A.; Brown, R.; Minian, G.; Porter, T. — 2006 Journal of Homotopy and Related Structures
Crossed complexes, and free crossed resolutions for amalgamated sums and HNN-extensions of groups. Brown, R.; Moore, E.J.; Porter, T.; Wensley, C.D. — 2002 Georgian Mathematical Journal
Free crossed resolutions from simplicial resolutions with given C W -basis A. Mutlu; T. Porter — 1999 Cahiers de Topologie et Géométrie Différentielle Catégoriques
Nilpotent crossed modules and pro- C completions F. J. Korkes; T. Porter — 1990 Cahiers de Topologie et Géométrie Différentielle Catégoriques