@incollection{AST_1984__113-114__212_0,
     author = {Hopkins, M. J.},
     title = {Formulations of cocategory and the iterated suspension},
     booktitle = {Homotopie alg\'ebrique et alg\`ebre locale},
     series = {Ast\'erisque},
     pages = {212--226},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {113-114},
     year = {1984},
     mrnumber = {749060},
     zbl = {0559.55013},
     language = {en},
     url = {http://archive.numdam.org/item/AST_1984__113-114__212_0/}
}