@article{1183525697, author = {Levine, J.}, title = {On differentiable imbeddings of simply-connected manifolds}, journal = {Bull. Amer. Math. Soc.}, volume = {69}, number = {4}, year = {1963}, pages = { 806-809}, language = {en}, url = {http://dml.mathdoc.fr/item/1183525697} }
Levine, J. On differentiable imbeddings of simply-connected manifolds. Bull. Amer. Math. Soc., Tome 69 (1963) no. 4, pp. 806-809. http://gdmltest.u-ga.fr/item/1183525697/