Combining information from web based survey and telephone survey Ingvar Tjøstheim Ivar Solheim Magne Aldrin Publication details Journal: Ukjent, vol. IX, p. 15–22–8, Tuesday 1. June 1999 Ingvar Tjøstheim Senior Research Scientist II Magne Aldrin Research Leader You are here: Home Publications Scientific article Combining information from web based survey and telephone survey
