%0 Journal Article %A Janusz ZieliƄski %T Local derivations in polynomial and power series rings %J Colloquium Mathematicum %D 2002 %P 295-305 %V 92 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm92-2-11/ %R 10.4064/cm92-2-11 %G en %F 10_4064_cm92_2_11