Marek Rybaczuk Contact: Wrocław, 50-37025 Mariana Smoluchowskiego streetbuilding B1 office: 113 B1 tel.: +48 71 320 3496 e-mail: Marek.Rybaczuk@pwr.edu.pl https://orcid.org/0000-0001-7042-2039 Office hours: Friday, 13–15 Saturday, 15–17