Felder, P. J., P. Cor M. Rademakers, und Marjorie E.Th. de Grooth, Hrsg. Excavations of Prehistoric Flint Mines at Rijckholt-St. Geertruid (Limburg, The Netherlands) by the ’Prehistoric Flint Mines Working Group’ of the Dutch Geological Society, Limburg Section. Archäologische Berichte 12. Heidelberg: Propylaeum, 2017. Zugegriffen November 21, 2024. https://books.ub.uni-heidelberg.de/propylaeum/catalog/book/219.