. "Bruthans, J." . "V\u00E1lek, Jan" . . "December" . . "Svetlik, D." . "0169-555X" . "I, P(IAA300130806), S, Z(MSM0021620855)" . "177" . "Geomorphology" . . "136207" . "In Strelec Quarry, the Czech Republic, an underground conduit network a catchment of 7 km2 developed over 5 years by groundwater flow in Cretaceous marine quartz sandstone. Similar landforms at natural exposures are stabilized by case hardening and have stopped evolving. Natural landforms were probably formed very rapidly by overland flow, piping and possibly fluidization during or at the end of the glacial periods when sandstone was not yet protected by case hardening." . . "Mayo, A. L." . "In Strelec Quarry, the Czech Republic, an underground conduit network a catchment of 7 km2 developed over 5 years by groundwater flow in Cretaceous marine quartz sandstone. Similar landforms at natural exposures are stabilized by case hardening and have stopped evolving. Natural landforms were probably formed very rapidly by overland flow, piping and possibly fluidization during or at the end of the glacial periods when sandstone was not yet protected by case hardening."@en . . . "000311462500014" . . "Soukup, J." . . "NL - Nizozemsko" . "Sedl\u00E1\u010Dkov\u00E1, M." . "Schweigstillov\u00E1, Jana" . . "16"^^ . "RIV/67985891:_____/12:00383272" . "1"^^ . "Fast evolving conduits in clay-bonded sandstone: Characterization, erosion processes"@en . "RIV/67985891:_____/12:00383272!RIV13-AV0-67985891" . . "Fast evolving conduits in clay-bonded sandstone: Characterization, erosion processes"@en . . . . "Fast evolving conduits in clay-bonded sandstone: Characterization, erosion processes" . . "10.1016/j.geomorph.2012.07.028" . . "sandstone; erosion; piping; tensile strength; conduit; landform"@en . . "7"^^ . . "Fast evolving conduits in clay-bonded sandstone: Characterization, erosion processes" . . "[25923A40D254]" . . . . .