sentences:  After returning to Norway, he was instrumental in the foundation and consolidation of social science research in Norway, a still fledgling field.He was a joint founder of the Norwegian Institute for Social Research (ISF, or "Institutt for samfunnsforsking"), an independent research institute in Oslo, along with Arne Næss, Eirik Rinde, and Stein Rokkan in 1950.Aubert was a member of the Labour Party in his younger days.