%0 Journal Article %A Leo Livshits %A Gordon MacDonald %A Laurent Marcoux %A Heydar Radjavi %T Universal bounds for positive matrix semigroups %J Studia Mathematica %D 2016 %P 143-153 %V 232 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm8421-3-2016/ %R 10.4064/sm8421-3-2016 %G en %F 10_4064_sm8421_3_2016