Closedness properties of internal relations. II: Bourn localization. Janelidze, Zurab — 2006 Theory and Applications of Categories [electronic only]
Closedness properties of internal relations. I. A unified approach to Mal'tsev, unital and subtractive categories. Janelidze, Zurab — 2006 Theory and Applications of Categories [electronic only]
Closedness properties of internal relations. IV: Expressing additivity of a category via subtractivity. Janelidze, Zurab — 2006 Journal of Homotopy and Related Structures
Characterization of pointed varieties of universal algebras with normal projections. Janelidze, Zurab — 2003 Theory and Applications of Categories [electronic only]
Approximate Mal'tsev operations. Bourn, Dominique; Janelidze, Zurab — 2008 Theory and Applications of Categories [electronic only]