TY - JOUR A1 - Liu, L. A1 - Grombacher, D. A1 - Auken, E. A1 - Larsen, J. J. T1 - Apsu: a wireless multichannel receiver system for surface nuclear magnetic resonance groundwater investigations JO - Geosci. Instrum. Method. Data Syst. J1 - GI VL - 8 IS - 1 SP - 1 EP - 11 Y1 - 2019/01/22 PB - Copernicus Publications SN - 2193-0864 UR - https://gi.copernicus.org/articles/8/1/2019/ L1 - https://gi.copernicus.org/articles/8/1/2019/gi-8-1-2019.pdf DO - 10.5194/gi-8-1-2019 ER -