@Article{zbMATH02526435,
Author = {B. A. {Lengyel} and M. H. {Stone}},
Title = {{Elementary proof of the spectral theorem}},
FJournal = {{Annals of Mathematics. Second Series}},
Journal = {{Ann. Math. (2)}},
ISSN = {0003-486X; 1939-8980/e},
Volume = {37},
Pages = {853--864},
Year = {1936},
Publisher = {Princeton University, Mathematics Department, Princeton, NJ},
Language = {English},
Zbl = {62.0450.02}
}