TY - JOUR AU - Ernest X. W. Xia TI - New infinite families of Ramanujan-type congruences modulo 9 for overpartition pairs JO - Colloquium Mathematicum PY - 2015 SP - 91 EP - 105 VL - 140 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/cm140-1-8/ DO - 10.4064/cm140-1-8 LA - en ID - 10_4064_cm140_1_8 ER -