APA (7th ed.) Citation

Jörgens, K. (1964). Spectral theory of second-order ordinary differential operators. Aarhus Universitet, Matematisk Institut.

Chicago Style (17th ed.) Citation

Jörgens, Konrad. Spectral Theory of Second-order Ordinary Differential Operators. Aarhus: Aarhus Universitet, Matematisk Institut, 1964.

MLA (8th ed.) Citation

Jörgens, Konrad. Spectral Theory of Second-order Ordinary Differential Operators. Aarhus Universitet, Matematisk Institut, 1964.

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