APA citáció

Labovskiy Sergey M. (2020). On discreteness of spectrum of a second order differential operator.

Chicago Style (17th ed.) Citation

Labovskiy Sergey M. On Discreteness of Spectrum of a Second Order Differential Operator. 2020.

MLA idézés

Labovskiy Sergey M. On Discreteness of Spectrum of a Second Order Differential Operator. 2020.