@article{01195728, title = {Finite morphisms between differentiable algebras.}, journal = {Portugaliae Mathematica. Nova S\'erie}, volume = {55}, year = {1998}, pages = {129-134}, zbl = {0917.46018}, language = {en}, url = {http://dml.mathdoc.fr/item/01195728} }
García Zapata, J.L. Finite morphisms between differentiable algebras.. Portugaliae Mathematica. Nova Série, Tome 55 (1998) pp. 129-134. http://gdmltest.u-ga.fr/item/01195728/