APA (7th ed.) Citation

Titchmarsh Edward Charles. (1950). On the discreteness of the spectrum of a differential equation.

Chicago Style (17th ed.) Citation

Titchmarsh Edward Charles. On the Discreteness of the Spectrum of a Differential Equation. 1950.

MLA (8th ed.) Citation

Titchmarsh Edward Charles. On the Discreteness of the Spectrum of a Differential Equation. 1950.

Warning: These citations may not always be 100% accurate.