Voir la notice de l'article provenant de la source Electronic Library of Mathematics
@article{DOCMA_1996__1__a18, author = {Karpenko, Nikita A.}, title = {Order of torsion in $CH\sp 4$ of quadrics}, journal = {Documenta mathematica}, pages = {57--65}, publisher = {mathdoc}, volume = {1}, year = {1996}, language = {en}, url = {http://geodesic.mathdoc.fr/item/DOCMA_1996__1__a18/} }
Karpenko, Nikita A. Order of torsion in $CH\sp 4$ of quadrics. Documenta mathematica, Tome 1 (1996), pp. 57-65. http://geodesic.mathdoc.fr/item/DOCMA_1996__1__a18/