@article{1183520700, author = {Spanier, E. H.}, title = {Duality and ${\text{S}}$-theory}, journal = {Bull. Amer. Math. Soc.}, volume = {62}, number = {6}, year = {1956}, pages = { 194-203}, language = {en}, url = {http://dml.mathdoc.fr/item/1183520700} }
Spanier, E. H. Duality and ${\text{S}}$-theory. Bull. Amer. Math. Soc., Tome 62 (1956) no. 6, pp. 194-203. http://gdmltest.u-ga.fr/item/1183520700/