| Serhii Bardyla, University of Vienna, Austria |
| Peter Eliaš, Mathematical Institute, Slovak Academy of Sciences, Košice, Slovakia |
| Daniel Fatuła, Jagiellonian University, Kraków, Poland |
| Ľubica Holá, Mathematical Institute, Slovak Academy of Sciences, Bratislava, Slovakia |
| Eliza Jabłońska, Faculty of Applied Mathematics, AGH University of Krakow, Poland |
| Stanisław Kowalczyk, Pomeranian University in Słupsk, Poland |
| Piotr Maćkowiak, Adam Mickiewicz University in Poznań, Poznań, Poland |
| Branislav Novotný, Mathematical Institute, Slovak Academy of Sciences, Bratislava, Slovakia |
| Daria Perkowska, Wrocław University of Science and Technology, Poland |
| Emilia Przemska, Pomeranian University in Słupsk, Poland |
| Tommaso Russo, University of Innsbruck, Innsbruck, Austria |
| Waldemar Sieg, Kazimierz Wielki University in Bydgoszcz, Poland |
| Małgorzata Turowska, Pomeranian University in Słupsk, Poland |
| Szymon Wąsowicz, University of Bielsko-Biala, Poland |
