%0 Journal Article %A Berger, Ruth I. %T The Kernel of and the 4-Rank of K2(O) %J Canadian mathematical bulletin %D 1992 %P 295-302 %V 35 %N 3 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1992-041-4/ %R 10.4153/CMB-1992-041-4 %F 10_4153_CMB_1992_041_4