On pairs of 2-complexes and systems of equations over groups. James Howie — 1981 Journal für die reine und angewandte Mathematik
Pullback functors and crossed complexes James Howie — 1979 Cahiers de Topologie et Géométrie Différentielle Catégoriques
A short proof of a theorem of Brodskii. James Howie — 2000 Publicacions Matemàtiques A short proof, using graphs and groupoids, is given of Brodskii’s theorem that torsion-free one-relator groups are locally indicable.
Homological and Topological Properties of Locally Indicable Groups. James Howie; Hans-R. Schneebeli — 1983 Manuscripta mathematica
Cellular Actions and Groups of Finite Quasi-Projective Dimension. Hans Rudolf Schneebeli; James Howie — 1980 Mathematische Zeitschrift
The genus problem for one-relator products of locally indicable groups. James Howie; Andrew J. Duncan — 1991 Mathematische Zeitschrift
Permutation modules and projective resolutions. James Howie; Hans R. Schneebeli — 1981 Commentarii mathematici Helvetici
Groups of finite quasi-projective dimension. James Howie; Hans R. Schneebeli — 1979 Commentarii mathematici Helvetici