An introduction to shape theory for the nonspecialist
Einige Anwendungen der Topologie auf die Algebra.
Errata to the paper "On shape" Fundamenta Mathematicae 74 (1972), pp. 47-71
Formes d'intersection et d'enlacement sur une variété
From fibre bundles to categories
Groupoids and crossed objects in algebraic topology.
Homotopical dynamics.
La théorie des rétracts approximatifs et le théorème des points fixes de Lefschetz [Book]
Le transfert dans les espaces fibrés
Levels in algebra and topology.
On shape
Problem session.
Variations on a theme of homotopy
The aim of this article is to bring together various themes from fairly elementary homotopy theory and to examine them, in part, from a historical and philosophical viewpoint.