@article{02146819, title = {On the Chow groups of quadratic Grassmannians.}, journal = {Documenta Mathematica}, volume = {10}, year = {2005}, pages = {111-130}, zbl = {1115.14002}, language = {en}, url = {http://dml.mathdoc.fr/item/02146819} }
Vishik, A. On the Chow groups of quadratic Grassmannians.. Documenta Mathematica, Tome 10 (2005) pp. 111-130. http://gdmltest.u-ga.fr/item/02146819/