TY - JOUR AU - Koprowski, Przemysław TI - Graded quaternion symbol equivalence of function fields JO - Czechoslovak Mathematical Journal PY - 2007 SP - 1311 EP - 1319 VL - 57 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/CMJ_2007__57_4_a12/ LA - en ID - CMJ_2007__57_4_a12 ER -