@article{CM_1973__27_2_185_0, author = {Eggar, M. H.}, title = {Ex-homotopy theory}, journal = {Compositio Mathematica}, pages = {185--195}, publisher = {Noordhoff International Publishing}, volume = {27}, number = {2}, year = {1973}, mrnumber = {353311}, zbl = {0272.55023}, language = {en}, url = {http://archive.numdam.org/item/CM_1973__27_2_185_0/} }