1. Instituto de Investigaciones Físicas, Universidad Mayor de San Andrés, La Paz, Bolivia
2. Instituto de Altos Estudos da Paraí ba, Rua Silvino Lopes 419-2502, 58039-190 João Pessoa, Brazil
3. Potsdam Institut für Klimafolgenforschung, 14412 Potsdam, Germany
4. Institut für Physik, Humboldt-Universität zu Berlin, 10115 Berlin, Germany
5. Lobachevsky University of Nizhny Novgorod, Nizhnij Novgorod 603950, Russia
6. Complexity Sciences Center, 9225 Collins Avenue Suite 1208, Surfside, Florida 33154, USA