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@article{MOMA_1996__122_3_178746, author = {Luc Vrancken}, title = {Thomsen {Surfaces} in {Affine} {4-Space.}}, journal = {Monatshefte f\"ur Mathematik}, pages = {251--264}, publisher = {mathdoc}, volume = {122}, number = {3}, year = {1996}, zbl = {0882.53012}, url = {http://geodesic.mathdoc.fr/item/MOMA_1996__122_3_178746/} }
Luc Vrancken. Thomsen Surfaces in Affine 4-Space.. Monatshefte für Mathematik, Tome 122 (1996) no. 3, pp. 251-264. http://geodesic.mathdoc.fr/item/MOMA_1996__122_3_178746/