APA (7th ed.) Citation

Bérard, P., & Helffer, B. (2022). Upper bounds on eigenvalue multiplicities for spheres and plane domains revisited.

Chicago Style (17th ed.) Citation

Bérard, Pierre, and Bernard Helffer. Upper Bounds on Eigenvalue Multiplicities for Spheres and Plane Domains Revisited. 2022.

MLA (9th ed.) Citation

Bérard, Pierre, and Bernard Helffer. Upper Bounds on Eigenvalue Multiplicities for Spheres and Plane Domains Revisited. 2022.

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