1. Adam Mickiewicz University in Poznań Institute of European Culture Kostrzewskiego 5–7 Gniezno Poland
2. Institute of Archaeology Slovak Academy of Sciences Akademická 2 Nitra Slovakia
3. Adam Mickiewicz University in Poznań Faculty of Chemistry Uniwersytetu Poznańskiego 8 Poznań Poland
4. Institute of Archaeology Slovak Academy of Sciences Hrnčiarska 13 Košice Slovakia
5. Institute of Archaeology, Slovak Academy of Sciences Mlynská 6 Spišská Nová Ves Slovakia