Energy redistribution in hierarchical systems of oscillators Vjacheslav A. Danylenko, Sergiy V. Mykulyak and Sergiy I. Skurativskyi Eur. Phys. J. B, 88 6 (2015) 143 Published online: 03 June 2015 DOI: 10.1140/epjb/e2015-60225-0