TY - JOUR A1 - Ferentinou, M. A1 - Witkowski, W. A1 - Hejmanowski, R. A1 - Grobler, H. A1 - Malinowska, A. T1 - Detection of sinkhole occurrence, experiences from South Africa JO - Proc. IAHS J1 - PIAHS VL - 382 SP - 77 EP - 82 Y1 - 2020/04/22 PB - Copernicus Publications SN - 2199-899X UR - https://piahs.copernicus.org/articles/382/77/2020/ L1 - https://piahs.copernicus.org/articles/382/77/2020/piahs-382-77-2020.pdf DO - 10.5194/piahs-382-77-2020 ER -