APA (7th ed.) Citation

Ludwig, H., & Steffen, M. (1996). Hydrodynamical model atmospheres: Convection and line formation in the Sun. Stellar surface structure.

Chicago Style (17th ed.) Citation

Ludwig, Hans-Günter, and Matthias Steffen. "Hydrodynamical Model Atmospheres: Convection and Line Formation in the Sun." Stellar Surface Structure 1996.

MLA (9th ed.) Citation

Ludwig, Hans-Günter, and Matthias Steffen. "Hydrodynamical Model Atmospheres: Convection and Line Formation in the Sun." Stellar Surface Structure, 1996.

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