TY - JOUR AU - E. Barnes TI - The construction of perfect and extreme forms II JO - Acta Arithmetica PY - 1959 SP - 205 EP - 222 VL - 5 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/aa-5-2-205-222/ DO - 10.4064/aa-5-2-205-222 LA - en ID - 10_4064_aa_5_2_205_222 ER -