@article{MZ_1986__193_173771,
     author = {Frank D. Grosshans},
     title = {Hilbert's {Fourteenth} {Problem} for {Non-Reductive} {Groups.}},
     journal = {Mathematische Zeitschrift},
     pages = {95--104},
     publisher = {mathdoc},
     volume = {193},
     year = {1986},
     zbl = {0579.14015},
     url = {http://geodesic.mathdoc.fr/item/MZ_1986__193_173771/}
}