@article{10_4153_CMB_2016_088_0,
     author = {Preda, Ciprian},
     title = {On the {Roughness} of {Quasinilpotency} {Property} of {One-parameter} {Semigroups}},
     journal = {Canadian mathematical bulletin},
     pages = {364--371},
     year = {2017},
     volume = {60},
     number = {2},
     doi = {10.4153/CMB-2016-088-0},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-2016-088-0/}
}