%0 Journal Article %A Anthony Bak %A Ulf Rehmann %T K2-analogs of Hasse's norm theorems. %J Commentarii mathematici Helvetici %D 1984 %P 1-11 %V 59 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMH_1984__59_139962/ %F CMH_1984__59_139962