title: Comment on "Anomalous mobility of strongly bound surface species: Cl on GaAs(001)-c(8 x 2)".
authors.affiliation: Fritz-Haber-Institut der Max-Planck-Gesellschaft Faradayweg 4-6, D-14195 Berlin, Germany.
authors.forename: Seung Mi
authors.initials: SM
authors.lastname: Lee
authors.forename: Sung-Hoon
authors.initials: SH
authors.lastname: Lee
authors.forename: Matthias
authors.initials: M
authors.lastname: Scheffler