RT Journal Article SR Electronic(1) A1 Geluk, M.YR 1998 T1 New Subsurface Maps 1:250,000 in The Netherlands-German Border Area JF , VO OP SP cp-110-00462 DO https://doi.org/10.3997/2214-4609.201408561 PB European Association of Geoscientists & Engineers, SN 2214-4609, AB , UL https://www.earthdoc.org/content/papers/10.3997/2214-4609.201408561