@article{GMJ_2003__10_1_51162, author = {Kadeishvili, T.}, title = {Cochain operations defining {Steenrod--products} in the bar construction.}, journal = {Georgian mathematical journal}, pages = {115--125}, year = {2003}, volume = {10}, number = {1}, zbl = {1056.55007}, language = {en}, url = {http://geodesic.mathdoc.fr/item/GMJ_2003__10_1_51162/} }