%0 Journal Article %A Tange, Rudolf %T Infinitesimal Invariants in a Function Algebra %J Canadian journal of mathematics %D 2009 %P 950-960 %V 61 %N 4 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-2009-048-6/ %R 10.4153/CJM-2009-048-6 %F 10_4153_CJM_2009_048_6