Cyclic and heteroclinic flows near general static spherically symmetric
  black holes: Semi-cyclic flows -- Addendum and corrigendum
  We present new accretion solutions of a polytropic perfect fluid onto an
f(R)-gravity de Sitter-like black hole. We consider two f(R)-gravity models and
obtain finite-period cyclic flows oscillating between the event and
cosmological horizons as well as semi-cyclic critical flows executing a two-way
motion from and back to the same horizon. Besides the generalizations and new
solutions presented in this work, a corrigendum to Eur. Phys. J. C (2016)
76:280 is provided.
