Hess, KathrynParent, Paul-EugèneScott, Jonathan2008-11-142008-11-142008-11-14200710.4310/HHA.2007.v9.n2.a9https://infoscience.epfl.ch/handle/20.500.14299/30938WOS:00025009710000911580Simplicial setMilgram maphomotopy equivalenceHopf algebraA chain coalgebra model for the James maptext::journal::journal article::research article