%0 Journal Article %A Prodinger, Helmut %T Topologies on free monoids induced by closure operators of a special type %J RAIRO. Informatique théorique %D 1980 %P 225-237 %V 14 %N 2 %I EDP-Sciences %U http://www.numdam.org/item/ITA_1980__14_2_225_0/ %G en %F ITA_1980__14_2_225_0