Template:Kuiper1965
From Manifold Atlas
N. H. Kuiper, The homotopy type of the unitary group of Hilbert space, Topology 3 (1965), 19–30. MR0179792 (31 #4034) Zbl 0129.38901
N. H. Kuiper, The homotopy type of the unitary group of Hilbert space, Topology 3 (1965), 19–30. MR0179792 (31 #4034) Zbl 0129.38901