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1.
Functional operators, volume 2, The geometry of orthogonal spaces. Annals of mathematics studies No. 22 by Von Neumann, John Publication: Princeton Princeton University Press 1950 Date: 1950 Availability: Items available: School of Theoretical Physics John T. Lewis Special Collection (Room 306) [530.01 NEU] (1), School of Theoretical Physics Special Cabinet [530.01 NEU] (1),
2.
Functional operators, volume 1, Measures and integrals. Annals of mathematics studies No. 21 by Von Neumann, John Publication: Princeton Princeton University Press 1950 Date: 1950 Availability: Items available: School of Theoretical Physics Special Cabinet [530.01 SC] (1),