@article{1077491223, author = {Grant, Anna}, title = {Surfaces of negative curvature and permanent regional transitivity}, journal = {Duke Math. J.}, volume = {5}, number = {1}, year = {1939}, pages = { 207-229}, language = {en}, url = {http://dml.mathdoc.fr/item/1077491223} }
Grant, Anna. Surfaces of negative curvature and permanent regional transitivity. Duke Math. J., Tome 5 (1939) no. 1, pp. 207-229. http://gdmltest.u-ga.fr/item/1077491223/