%0 Journal Article %A PĂun, Gheorghe %T Some further remarks on the family of finite index matrix languages %J RAIRO. Informatique théorique %D 1979 %P 289-297 %V 13 %N 3 %I EDP-Sciences %U http://archive.numdam.org/item/ITA_1979__13_3_289_0/ %G en %F ITA_1979__13_3_289_0