TY - JOUR AU - Preda, Ciprian TI - On the Roughness of Quasinilpotency Property of One-parameter Semigroups JO - Canadian mathematical bulletin PY - 2017 SP - 364 EP - 371 VL - 60 IS - 2 UR - http://geodesic.mathdoc.fr/articles/10.4153/CMB-2016-088-0/ DO - 10.4153/CMB-2016-088-0 ID - 10_4153_CMB_2016_088_0 ER -