1 Correction to: Nonlinear Dyn (2017) 90:749–754 https://doi.org/10.1007/s11071-017-3671-2

This article was originally published Online First without open access. After publication in volume 90, issue no. 1, pages 749–754 the author decided to opt for Open Choice and to make the article an open access publication. Therefore, the copyright of the article has been changed to © The Author(s) 2017 and the article is forthwith distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits use, duplication, adaptation, distribution, and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.