Christlein, Daniel Cosmology, MPI for Astrophysics, Max Planck Society;
Christlein, D., & Bland-Hawthorn, J. (2009). Measuring outer disk warps with optical spectroscopy. In J. Andersen, J. Bland-Hawthorn, & B. Nordström (Eds.), The Galaxy Disk in Cosmological Context (pp. 283-288). Cambridge, UK: Cambridge University Press.