title: High-resolution inner-valence uv photoelectron spectra of the O2 molecule and configuration-interaction calculations of 2 Pi u states between 20 and 26 eV.
authors.initials: P
authors.lastname: Baltzer
authors.initials: B
authors.lastname: Wannberg
authors.initials: L
authors.lastname: Karlsson
authors.lastname: Carlsson Göthe M
authors.initials: M
authors.lastname: Larsson