Erratum: On the nonlinear dynamics of electro-magnon excitations in the BaTiO3/Fe nanostructured multiferroic composite materialP. A. Paglan, J. P. Nguenang and S. RuffoEPL, 123 4 (2018) 49901DOI: https://doi.org/10.1209/0295-5075/123/49901