APA (7th ed.) Citation

Lobb, S., & Nijhoff, F. (2018). A Variational Principle for Discrete Integrable Systems. Symmetry, Integrability and Geometry: Methods and Applications.

Chicago Style (17th ed.) Citation

Lobb, S.B, and F.W Nijhoff. "A Variational Principle for Discrete Integrable Systems." Symmetry, Integrability and Geometry: Methods and Applications 2018.

MLA (8th ed.) Citation

Lobb, S.B, and F.W Nijhoff. "A Variational Principle for Discrete Integrable Systems." Symmetry, Integrability and Geometry: Methods and Applications, 2018.

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