%0 Journal Article %A Book, Ronald V. %A Greibach, Sheila A. %T The independence of certain operations on semiAFLs %J RAIRO. Informatique théorique %D 1978 %P 369-385 %V 12 %N 4 %I EDP-Sciences %U http://archive.numdam.org/item/ITA_1978__12_4_369_0/ %G en %F ITA_1978__12_4_369_0