By May 30, 2021, questions may be submitted to the authors
Do 30 maja 2021 r. można kierować pytania do autorów
| Name / Nazwisko | Poster | |
| Peter Pantya | This email address is being protected from spambots. You need JavaScript enabled to view it. | Download / Pobierz |
| Rácz Sándor | This email address is being protected from spambots. You need JavaScript enabled to view it. | Download / Pobierz |
| Lilla Horvath | This email address is being protected from spambots. You need JavaScript enabled to view it. | Download / Pobierz |