%0 Journal Article %A Bailo, Esteban %A Gelonch, Josep %A Romero-Vivo, Sergio %T An upper bound of the reachability index for a special class of positive 2-D systems %J The electronic journal of linear algebra %D 2009 %P 1-12 %V 18 %I mathdoc %U http://geodesic.mathdoc.fr/item/ELA_2009__18__a57/ %G en %F ELA_2009__18__a57