1. Namur Institute for Complex Systems (naXys), Université de Namur 1 , Rue de Bruxelles 61, B-5000 Namur, Belgium
2. Division of Dynamics, Lodz University of Technology 2 , Stefanowskiego 1/15, 90-924 Lodz, Poland
3. Instituto de Investigaciones Físicas, and Planetario Max Schreier, Universidad Mayor de San Andrés 3 , Campus Universitario, C. 27 s/n Cota-Cota, 0000 La Paz, Bolivia
4. Unit of Theoretical Chronobiology, Université Libre de Bruxelles 4 , CP231, Boulevard du Triomphe, 1050 Brussels, Belgium