%0 Journal Article %A A. Alexiewicz %T On sequences of operations (I) %J Studia Mathematica %D 1950 %P 1-30 %V 11 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm-11-1-1-30/ %R 10.4064/sm-11-1-1-30 %G en %F 10_4064_sm_11_1_1_30