@article{GDZPPN002432471, title = {Hilbert's Fourteenth Problem for Non-Reductive Groups.}, journal = {Mathematische Zeitschrift}, volume = {192}, year = {1986}, pages = {95-104}, zbl = {0579.14015}, url = {http://dml.mathdoc.fr/item/GDZPPN002432471} }
Grosshans, Frank D. Hilbert's Fourteenth Problem for Non-Reductive Groups.. Mathematische Zeitschrift, Tome 192 (1986) pp. 95-104. http://gdmltest.u-ga.fr/item/GDZPPN002432471/