  The hadronic decay D0 -> KS0 pi+ pi- provides access to the measurement of
the mixing parameters of the neutral D-meson system and allows to test for CP
violation. A measurement of the mixing parameters x_D and y_D as well as of the
parameters |q/p| and phi=arg(q,p), which govern indirect CP violation, will be
performed based on a time-dependent amplitude-model analysis of the full LHCb
dataset of 2011 and 2012 corresponding to an integrated luminosity of 3/fb.
