@article {51, title = {An exact sequence for K^M/2 with applications to quadratic forms}, journal = {Ann. of Math. (2)}, volume = {165}, year = {2007}, pages = {1{\textendash}13}, issn = {0003-486X}, doi = {10.4007/annals.2007.165.1}, url = {http://dx.doi.org/10.4007/annals.2007.165.1}, author = {Orlov, D. and Vishik, A. and Voevodsky, V.} }