%0 Journal Article %A Culik II, K. %A Karhumäki, J. %T On the equality sets for homomorphisms on free monoids with two generators %J RAIRO. Informatique théorique %D 1980 %P 349-369 %V 14 %N 4 %I EDP-Sciences %U http://archive.numdam.org/item/ITA_1980__14_4_349_0/ %G en %F ITA_1980__14_4_349_0