TY - JOUR AU - Richard Elman AU - T.Y. Lam TI - Classification Theorems for Quadratic Forms over Fields JO - Commentarii mathematici Helvetici PY - 1974 SP - 373 EP - 381 VL - 49 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/CMH_1974__49_139590/ ID - CMH_1974__49_139590 ER -