TY - JOUR AU - Ernest X. W. Xia TI - On the number of representations of a positive integer by certain quadratic forms JO - Colloquium Mathematicum PY - 2014 SP - 139 EP - 145 VL - 135 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/cm135-1-11/ DO - 10.4064/cm135-1-11 LA - en ID - 10_4064_cm135_1_11 ER -