@article{SMJ2_2001_27_3_a5,
     author = {Freudenburg, Gene},
     title = {A {Survey} of {Counterexamples} to {Hilbert's} {Fourteenth} {Problem}},
     journal = {Serdica Mathematical Journal},
     pages = {171--192},
     publisher = {mathdoc},
     volume = {27},
     number = {3},
     year = {2001},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SMJ2_2001_27_3_a5/}
}