%0 Journal Article %A Soto, Ricardo L. %A Rojo, Oscar %A Manzaneda, Cristina B. %T On nonnegative realization of partitioned spectra %J The electronic journal of linear algebra %D 2011 %P 557-572 %V 22 %I mathdoc %U http://geodesic.mathdoc.fr/item/ELA_2011__22__a42/ %G en %F ELA_2011__22__a42