Sources:
- Romuald Schild, PL 4 Polany Kolonie II, Radom Province in: Archaeologia Polona vol. 33: 995, pp. 480-488
- Tomasz Herbich and Jacek Lech, PL 4 Polany Kolonie II, Radom Province in: Archaeologia Polona vol. 33: 995, pp. 488-506 [cordinates are inproper]
- R. Schild, Flint mining and trade in Polish prehistoryk as seen from the perspective of the chocolate filnt of central Poland. A second approach, Acta Archaeologica Carpathica, t. 16 : 1976, s. 147-177.
- Maria Chmielewska. The Early Bronze Age flint mine at site II, Polany, Radom District, Przegląd Archeologiczny, t. 35: 1988, s. 139-181.
- http://www.minesdespiennes.org/blog/2015/friday-21-august-2015-lecture-a-marvellous-heritage-the-neolithic-flint-mines-of-poland-at-the-interpretation-centre-of-spiennes/