%0 Journal Article %A N. C. Manna %T On a generalization of smooth and symmetric functions %J Colloquium Mathematicum %D 1970 %P 291-299 %V 22 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm-22-2-291-299/ %R 10.4064/cm-22-2-291-299 %G en %F 10_4064_cm_22_2_291_299