Reconciling Planck results with low redshift astronomical measurements
  We show that emerging tension between the direct astronomical measurements at
low redshifts and cosmological parameters deduced from the Planck measurements
of the CMB anisotropies can be alleviated if the dark matter consists of two
fractions, stable part being dominant and a smaller unstable fraction. The
latter constitutes $\sim 10$ per cent at the recombination epoch if decays by
now.
