@article{DOCMA_2002__7__a5,
     author = {Karpenko, Nikita and Merkurjev, Alexander},
     title = {Rost projectors and {Steenrod} operations},
     journal = {Documenta mathematica},
     pages = {481--493},
     publisher = {mathdoc},
     volume = {7},
     year = {2002},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/DOCMA_2002__7__a5/}
}