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@article{SMJ2_2010_35_2_a0, author = {Bedratyuk, Leonid}, title = {Weitzenb\"ock {Derivations} and {Classical} {Invariant} {Theory:} {I.} {Poincar\'e} {Series}}, journal = {Serdica Mathematical Journal}, pages = {99--120}, publisher = {mathdoc}, volume = {35}, number = {2}, year = {2010}, language = {en}, url = {http://geodesic.mathdoc.fr/item/SMJ2_2010_35_2_a0/} }
Bedratyuk, Leonid. Weitzenböck Derivations and Classical Invariant Theory: I. Poincaré Series. Serdica Mathematical Journal, Tome 35 (2010) no. 2, pp. 99-120. http://geodesic.mathdoc.fr/item/SMJ2_2010_35_2_a0/