1. University of Warsaw, Institute of Applied Linguistics, ul. Dobra 55, Warsaw, PL‐00‐312 Poland
2. Jesuit University Ignatianum in Kraków, Institute of Modern Languages, ul. Kopernika 26, Kraków, PL‐31‐501 Poland
3. University of Cambridge, Engineering Department, Trumpington Street, Cambridge, CB2 1PZ United Kingdom
4. Jagiellonian University, Institute of Theoretical Physics and Mark Kac Complex Systems Center, ul. prof. Stanisława Łojasiewicza 11, Kraków, PL‐30‐348 Poland