The file "Kaeg_- SFM -_Long_ones_mostly_old.zip" appears to be a specific, likely private, archive rather than a publicly recognized academic paper. It likely contains data for Structure from Motion (SfM) 3D modeling or another technical field involving long-term, old datasets.
To identify the source, please check any included README files or locate the original source, such as a research database, where you acquired the archive.