Lapperre RE, Kasse C, Bense VF, Woolderink HA, Van Balen RT. An overview of fault zone permeabilities and groundwater level steps in the Roer Valley Rift System. njg [Internet]. 2019Nov.5 [cited 2026Apr.8];98. Available from: https://njgjournal.nl/index.php/njg/article/view/11697