Hamburg/SAO Survey (HSS) for Emission-Line Galaxies - New Wide-Angle Search for Blue Compact Galaxies (BCG) . ... New project named Hamburg/SAO Survey extends study of blue compact galaxies to new large wide-angle sample based on digitized objective-prism photoplates of the Hamburg Quasar Survey (HQS). ... 60%) of observed emission-line objects in accordance to the idea of use objective-prism wide-field surveys as favorable technique to search for narrow emission-line galaxies . ...