- Molecular Constants from Microwave, Molecular Beam, and Electron Spin Resonance Spectroscopy / Molekelkonstanten aus Messungen der Mikrowellen-, Molekularstrahl- ... Relationships in Science & Technol
- Diamagnetic Diatomic Molecules, Part 1: Molecular Constants Mostly from Microwave, Molecular Beam and Sub-Doppler Laser Spectroscopy, Subvol. A1
- Asymmetric Top Molecules, Part 3
- Accurate Structure Determination of Free Molecules
- Equilibrium Structure of Free Molecules: Theory, Experiment, and Data Analysis