TY - JOUR AU - Paul Ponomarev TI - Class number formulas for quaternary quadratic forms JO - Acta Arithmetica PY - 1981 SP - 95 EP - 104 VL - 39 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/aa-39-1-95-104/ DO - 10.4064/aa-39-1-95-104 LA - en ID - 10_4064_aa_39_1_95_104 ER -