title: Communications: On the linear response of mechanical systems with constraints.
authors.affiliation: Institut für Mathematik, Freie Universität Berlin, 14195 Berlin, Germany. chartman@mi.fu-berlin.de
authors.forename: Carsten
authors.initials: C
authors.lastname: Hartmann
authors.forename: Christof
authors.initials: C
authors.lastname: Schütte
authors.forename: Giovanni
authors.initials: G
authors.lastname: Ciccotti