@article{1138037146, author = {Enomoto, Kazuyuki}, title = {The Gauss image of flat surfaces in ${\bf R}^4$}, journal = {Kodai Math. J.}, volume = {9}, number = {1}, year = {1986}, pages = { 19-32}, language = {en}, url = {http://dml.mathdoc.fr/item/1138037146} }
Enomoto, Kazuyuki. The Gauss image of flat surfaces in ${\bf R}^4$. Kodai Math. J., Tome 9 (1986) no. 1, pp. 19-32. http://gdmltest.u-ga.fr/item/1138037146/