Authorities fear a woman in western Pennsylvania who disappeared while looking for her cat may have been swallowed by a sinkhole — a phenomenon likely caused by mine subsidence.Search and rescue crews ...
Authorities fear a woman in western Pennsylvania who disappeared while looking for her cat may have been swallowed by a sinkhole — a phenomenon likely caused by mine subsidence. Search and rescue ...
Underlying issues on the selection, use and conservation of building limestone / Bernard J. Smith, Miguel Gómez-heras, and Heather A. Viles -- The use of limestone in a historic context-- the ...
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