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Article	Title	Journal	Published
OaM-16-12	On a characterization of Jeribi, Rakočević, Schechter, Schmoeger and Wolf essential spectra of a 3⨉3 block operator matrices with non diagonal domain and application Nedra Moalla, Wafa Selmi	Operators and Matrices	Volume 16, Issue 1 03/2022
OaM-13-16	On the essential spectra of unbounded operator matrices with non diagonal domain and an application Marwa Belghith, Nedra Moalla, Ines Walha	Operators and Matrices	Volume 13, Issue 1 03/2019