Style de citation APA (7e éd.)

Hu, X., Portaluri, A., & Wu, L. (2025). Index theory for singular Lagrangian systems and Bessel-type differential operators.

Style de citation Chicago (17e éd.)

Hu, Xijun, Alessandro Portaluri, et Li Wu. Index Theory for Singular Lagrangian Systems and Bessel-type Differential Operators. 2025.

Style de citation MLA (9e éd.)

Hu, Xijun, et al. Index Theory for Singular Lagrangian Systems and Bessel-type Differential Operators. 2025.

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