%0 Journal Article %A William Casselman %T The Restriction of a Representation of GL2(k) to GL2(o). %J Mathematische Annalen %D 1973 %P 311 %V 206 %I mathdoc %U https://geodesic-test.mathdoc.fr/item/MAN_1973__206_162525/ %G un %F MAN_1973__206_162525