Shock-induced noise in 2D sub- and supersonic mixing layers J. Schulze, Ch. Schaupp, J. Sesterhenn, R. Friedrich, J. Berland, Ch. Bogey and D. Juvé ESAIM: Proc., 16 (2007) 51-65 Published online: 02 March 2007 DOI: 10.1051/proc:2007009