title: Comment on "Interaction of hydrogen with RuO2(110) surfaces: activity differences between various oxygen species".
authors.affiliation: Department of Physical Chemistry, Justus-Liebig-University, Heinrich-Buff-Ring 58, D-35392 Giessen, Germany.
authors.forename: D
authors.initials: D
authors.lastname: Crihan
authors.forename: M
authors.initials: M
authors.lastname: Knapp
authors.forename: A P
authors.initials: AP
authors.lastname: Seitsonen
authors.forename: H
authors.initials: H
authors.lastname: Over