@Article{zbMATH03286805,
Author = {David W. {Henderson}},
Title = {{Infinite-dimensional manifolds are open subsets of Hilbert space}},
FJournal = {{Bulletin of the American Mathematical Society}},
Journal = {{Bull. Am. Math. Soc.}},
ISSN = {0002-9904; 1936-881X/e},
Volume = {75},
Pages = {759--762},
Year = {1969},
Publisher = {American Mathematical Society (AMS), Providence, RI},
Language = {English},
Zbl = {0179.29101}
}