APA (7th ed.) Citation

Dubrovin, B., & Kapaev, A. (2018). A Riemann-Hilbert Approach to the Heun Equation. Symmetry, Integrability and Geometry: Methods and Applications.

Chicago Style (17th ed.) Citation

Dubrovin, B., and A. Kapaev. "A Riemann-Hilbert Approach to the Heun Equation." Symmetry, Integrability and Geometry: Methods and Applications 2018.

MLA (8th ed.) Citation

Dubrovin, B., and A. Kapaev. "A Riemann-Hilbert Approach to the Heun Equation." Symmetry, Integrability and Geometry: Methods and Applications, 2018.

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