title: Photoelectron spectroscopic study of the first singlet and triplet states of the cyclopentadienyl cation.
authors.affiliation: Laboratorium für Physikalische Chemie, ETH Zürich, 8093 Zürich, Switzerland.
authors.forename: Hans Jakob
authors.initials: HJ
authors.lastname: Wörner
authors.forename: Frédéric
authors.initials: F
authors.lastname: Merkt