TY - JOUR AU - E. Barnes TI - The construction of perfect and extreme forms I JO - Acta Arithmetica PY - 1959 SP - 57 EP - 79 VL - 5 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/aa-5-1-57-79/ DO - 10.4064/aa-5-1-57-79 LA - en ID - 10_4064_aa_5_1_57_79 ER -