4 books • 3 series
The Abundance of the Elements
Physics of Thermal Gaseous Nebulae (Astrophysics and Space Science Library, v. 112)
Atoms, Stars and Nebulae
Astrophysik II: Sternaufbau / Astrophysics II: Stellar Structure (Handbuch der Physik Encyclopedia of Physics / Astrophysik / Astrophysics, 11 / 51) (Handbuch der Physik / Encyclopedia of Physics, 11 / 51)