[1
] Department of Business and Economics, Berlin School of Economics and Law, 10825 Berlin,
Germany
[2
] IMT Atlantique, LS2N, CNRS, La Chantrerie, 4, rue Alfred Kastler, 44300 Nantes, France
[3
] Saint Petersburg Institute for Informatics and Automation of the RAS (SPIIRAS), V.O.
14 line, 39 199178, St. Petersburg, Russia