@conference{Cas-Haz-Jol-2012,
    author={Maxence Cassier and Christophe Hazard and Patrick Joly },
    title={Using time reversal for space-time focusing of acoustic waves },
    publisher={Workshop: journées de Metz 2012: Recent Advances in Modeling, 
           Analysis and Simulation of Wave Propagation, Metz, France },
    year={2012 },
    month={3},
}