Boardman, Vogt :homotopy invariant algebraic structures on topological spaces

C’est là que s’origine la “higher dimensional Category theory”
https://books.google.fr/books?id=QjB8CwAAQBAJ&pg=PR1&lpg=PR1&dq=boardman+vogt+homotopy+invariant+algebraic+structures&source=bl&ots=Q81VYZibQY&sig=y7c8B2ZaZicdNOW-8ZOTYgZKvXQ&hl=fr&sa=X&ved=0ahUKEwjcjpCO3tLQAhUEPxoKHXXlD7g4ChDoAQgZMAA#v=onepage&q=boardman%20vogt%20homotopy%20invariant%20algebraic%20structures&f=false