Gerhard, Ortwin Optical and Interpretative Astronomy, MPI for Extraterrestrial Physics, Max Planck Society;
Bland-Hawthorn, J., & Gerhard, O. (2016). The Galaxy in Context: Structural, Kinematic, and Integrated Properties. In Annual Review of Astronomy and Astrophysics (pp. 529-596). Palo Alto, CA, USA: Annual Reviews Inc.