RT Journal Article SR Electronic(1) A1 Dellinger, J. A1 de Ridder, S. A1 Mordret, A. A1 Shapiro, N. A1 Barkved, O.I. A1 Yu, J.YR 2013 T1 Progress towards a Passive Shallow-subsurface Continuous-monitoring System at Valhall Using the LoFS Array JF , VO OP SP cp-348-00635 DO https://doi.org/10.3997/2214-4609.20130194 PB European Association of Geoscientists & Engineers, SN 2214-4609, AB , UL https://www.earthdoc.org/content/papers/10.3997/2214-4609.20130194