@article{GDZPPN002086018, title = {Steenrod Operations in Homological Algebra.}, journal = {Inventiones mathematicae}, volume = {1}, year = {1966}, pages = {152-208}, zbl = {0139.01502}, url = {http://dml.mathdoc.fr/item/GDZPPN002086018} }
EPSTEIN, D. B. A. Steenrod Operations in Homological Algebra.. Inventiones mathematicae, Tome 1 (1966) pp. 152-208. http://gdmltest.u-ga.fr/item/GDZPPN002086018/