title: Ultrafast acoustics. Preface.
authors.affiliation: Institut des Nanosciences de Paris, Pierre & Marie Curie University and CNRS, Paris, France.
authors.forename: Emmanuel
authors.initials: E
authors.lastname: Péronne
authors.affiliation: Institut des Nanosciences de Paris, Pierre & Marie Curie University and CNRS, Paris, France.
authors.forename: Bernard
authors.initials: B
authors.lastname: Perrin