%0 Journal Article %A Clerbout, M. %A Roos, Y. %A Ryl, I. %T Semi-commutations and partial commutations %J RAIRO - Theoretical Informatics and Applications - Informatique Théorique et Applications %D 2000 %P 307-330 %V 34 %N 4 %I EDP-Sciences %U http://www.numdam.org/item/ITA_2000__34_4_307_0/ %G en %F ITA_2000__34_4_307_0