Munsterman , Dirk K., and Jef Deckers. 2022. “Biostratigraphic Ages and Depositional Environments of the Upper Oligocene to Lower Miocene Veldhoven Formation in the Central Roer Valley Rift System (SE Netherlands-NE Belgium)”. Netherlands Journal of Geosciences 101 (March). https://doi.org/10.1017/njg.2022.3.