@book{
finc-173-ed000003088252,
title = {Variablen in der Benutzerforschung},
author = {Plagemann, Susanne},
address = {Berlin},
publisher = {PROGRIS, Projektgruppe Informationssysteme},
year = {1980},
url = {https://katalog.fid-bbi.de/Record/finc-173-ed000003088252}
}