TY - JOUR AU - Kazuyuki Hatada TI - On the rationality of periods of primitive forms JO - Acta Arithmetica PY - 1981 SP - 9 EP - 40 VL - 40 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/aa-40-1-9-40/ DO - 10.4064/aa-40-1-9-40 LA - en ID - 10_4064_aa_40_1_9_40 ER -