1. Robotic Systems Laboratory, École Polytechnique Fédérale de Lausanne, EPFL STI IMT LSRO, ME B3 30 (Bâtiment ME), Station 9 1015 Lausanne, Switzerland.
2. BioISI, Faculdade de Ciências da Universidade de Lisboa, 1749-016 Lisbon, Portugal.
3. Artificial Life Laboratory of the Institute of Biology, Karl-Franzens University Graz, Universitätsplatz 2, 8010 Graz, Austria.
4. Univ Paris Diderot, Sorbonne Paris Cité, LIED UMR 8236, 75013 Paris, France.
5. Laboratory for Robotics and Intelligent Control Systems, Faculty of Electrical Engineering and Computing, University of Zagreb, Unska 3, 10000 Zagreb, Croatia.