W. Fawley - LBL

P.J.M. Van der Slot – University of Twente

E. Allaria - FERMI@elettra

L. Giannessi – SPARK

J. Hastings – LCLS, Stanford

M. Meyer – XFEL

J. Lüning - University of Paris

T. Scopigno - University of Rome

C. Callegari - FERMI@elettra

H. Chapman - CFEL

S. Vinko - University of Oxford

H. Schlarb - DESY