%0 Journal Article %A Bebiano, Natalia %A Da Providencia, Joao %A Da Providencia, Joao P. %T Classes of non-Hermitian operators with real eigenvalues %J The electronic journal of linear algebra %D 2010 %P 98-109 %V 21 %I mathdoc %U http://geodesic.mathdoc.fr/item/ELA_2010__21__a4/ %G en %F ELA_2010__21__a4