%0 Journal Article %A Ehrenfeucht, A. %A Rozenberg, G. %T Each regular code is included in a maximal regular code %J RAIRO - Theoretical Informatics and Applications - Informatique Théorique et Applications %D 1986 %P 89-96 %V 20 %N 1 %I AFCET - Gauthier-Villars %C Paris %U http://www.numdam.org/item/ITA_1986__20_1_89_0/ %G en %F ITA_1986__20_1_89_0