@article{GDZPPN002489880, title = {Thomsen Surfaces in Affine 4-Space.}, journal = {Monatshefte f\"ur Mathematik}, volume = {121}, year = {1996}, pages = {251-264}, zbl = {0882.53012}, url = {http://dml.mathdoc.fr/item/GDZPPN002489880} }
Vrancken, Luc. Thomsen Surfaces in Affine 4-Space.. Monatshefte für Mathematik, Tome 121 (1996) pp. 251-264. http://gdmltest.u-ga.fr/item/GDZPPN002489880/