Template:Whitney1936
From Manifold Atlas
H. Whitney, Differentiable manifolds, Ann. of Math. (2) 37 (1936), no.3, 645–680. MR1503303 () Zbl 0063.08233
H. Whitney, Differentiable manifolds, Ann. of Math. (2) 37 (1936), no.3, 645–680. MR1503303 () Zbl 0063.08233