%0 Journal Article %A L. Hsu %T Approximation of non-bounded continuous functions by certain sequences of linear positive operators or polynomials %J Studia Mathematica %D 1961 %P 37-43 %V 21 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4064/sm-21-1-37-43/ %R 10.4064/sm-21-1-37-43 %G en %F 10_4064_sm_21_1_37_43