%0 Journal Article %A Bouali, S. %A Ech-chad, M. %T Generalized D-symmetric Operators II %J Canadian mathematical bulletin %D 2011 %P 21-27 %V 54 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-2010-094-2/ %R 10.4153/CMB-2010-094-2 %F 10_4153_CMB_2010_094_2