Aussiedlerumfrage IOS-U2
Deutsche aus der Sowjetunion und Aussiedler aus der UdSSR in der Bundesrepublik Deutschland
CrossSection
Cross-sectional data is data collected by observing subjects at the same point in time, or without regard to differences in time. Analysis of cross-sectional data usually consists in comparing the differences among subjects, but is not focused on studying change over time (adapted from Wikipedia).