Higher-dimensional crossed modules and the homotopy groups of (n+1)-ads

Van Kampen theorems for diagrams of spaces

Ronald Brown, Jean-Louis Loday · Topology · 1987 · 401 citations

Van Kampen, Topological Property, Computational Topology

Spaces with finitely many non-trivial homotopy groups

Jean-Louis Loday · Journal of Pure and Applied Algebra · 1982 · 315 citations

Topological Property, Loop Space

Homotopical Excision, and Hurewicz Theorems, for <i>n</i>-Cubes of Spaces

Ronald Brown, Jean-Louis Loday · Proceedings of the London Mathematical Society · 1987 · 54 citations

The First Non-Vanishing Group of an (<i>n</i>+l)-AD

M. G. Barratt, J. H. C. Whitehead · Proceedings of the London Mathematical Society · 1956 · 24 citations