%0 Journal Article %A Culik II, Karel %A Karhumäki, Juhani %T Loops in automata and HDTOL relations %J RAIRO - Theoretical Informatics and Applications - Informatique Théorique et Applications %D 1990 %P 327-337 %V 24 %N 4 %I EDP-Sciences %U http://www.numdam.org/item/ITA_1990__24_4_327_0/ %G en %F ITA_1990__24_4_327_0