@article {MR1368821,
	title = {Properties of quasinilpotents in some operator algebras},
	journal = {Proc. Roy. Irish Acad. Sect. A},
	volume = {93},
	number = {2},
	year = {1993},
	pages = {155{\textendash}170},
	issn = {0035-8975},
	url = {https://www.jstor.org/stable/20489451},
	author = {Barnes, B. A. and Katavolos, A.}
}
