title: Comment on "collective cooper-pair transport in the insulating state of Josephson-junction arrays".
authors.affiliation: Theoretische Physik III Ruhr-Universitat Bochum D-44801 Bochum, Germany.
authors.forename: K B
authors.initials: KB
authors.lastname: Efetov
authors.forename: M V
authors.initials: MV
authors.lastname: Feigel'man
authors.forename: P B
authors.initials: PB
authors.lastname: Wiegmann