%0 Journal Article %A Benvenuti, Luca %A Farina, Lorenzo %T Minimal positive realizations: a survey of recent results and open problems %J Kybernetika %D 2003 %P [217] %V 39 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/KYB_2003__39_2_a10/ %G en %F KYB_2003__39_2_a10