References

• John von Neumann, Mathematical Foundations of Quantum Mechanics, Princeton University Press 1955 (translated and updated from the original German edition of 1932)

• Paul Adrien Maurice Dirac, Principles of Quantum Mechanics, Oxford University Press 1930 (but get the revised 4th edition of 1967: he invents Dirac notation in the 3rd edition)

• Richard Courant and David Hilbert, Methods of Mathematical Physics I, Gottingen 1924 (get the 2nd edition, 1953)

• Gábor Szegő, Orthogonal Polynomials, AMS 1973

• [Stanford Encyclopedia of Philosophy] Quantum Theory: von Neumann vs Dirac