Sources:
- Bartosz Kontny, Marcin Rudnicki, Finds of Purse Fastenings from the Iron Age ‘Central Place’ at Gąski-Wierzbiczany in Kuyavia (Central Poland), Acta Archaeologica Carpathica LI, Polish Academy of Sciences — Cracow Branch Commission of Archaeology 2016, pp. 307–318
- https://poland.pl/history/history-poland/archaeologists-we-have-proof-roman-legions-presence-poland/
- http://www.mpov.uw.edu.pl/pl/thesaurus/stanowiska/gaski