%0 Journal Article %A M. Reichaw %T On the convergence of superpositions of a sequence of operators %J Studia Mathematica %D 1964 %P 343-351 %V 25 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm-25-3-343-351/ %R 10.4064/sm-25-3-343-351 %G en %F 10_4064_sm_25_3_343_351