TY - JOUR AU - Li, Boyu TI - Normal Extensions of Representations of Abelian Semigroups JO - Canadian mathematical bulletin PY - 2016 SP - 564 EP - 574 VL - 59 IS - 3 UR - http://geodesic.mathdoc.fr/articles/10.4153/CMB-2016-021-x/ DO - 10.4153/CMB-2016-021-x ID - 10_4153_CMB_2016_021_x ER -