00396nam a2200121Ia 4500008004100000020001800041082001700059100002200076245005700098260003600155300002000191440006300211260827b        |||||||| |||| 00| 0 eng d  a9783540295211  a512bF889.AT  aFreudenburg, Gene  aAlgebraic theory of locally nilpotent derivationsb/  aBerlin:bSpringer-Verlag,c2006  axi, 261p. Index  aInvariant theory and algebraic transformation groups ; VII