Krawczyk, C. M. 2.7 Near-surface Geophysics, 2.0 Geophysics, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;
SIMULTAN Research Group,
http://digital.lib.usf.edu/SFS0064364/00001 (Supplementary material)
Krawczyk, C. M., SIMULTAN Research Group (2018): Joint project SIMULTAN - Sinkhole characterization and monitoring with supplementing geophysical methods - Proceedings, 15th Multidisciplinary Conference on Sinkholes and the Engineering and Environmental Impacts of Karst and the 3rd Appalachian Karst Symposium (Shepherdstown, West Virginia, USA 2018), 315-322.