?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Wahlstr%C3%B6m%2C+B.&rft.aulast=Wahlstr%C3%B6m&rft.aufirst=B.&rft.date=August+1990&rft.title=Modeling+of+man-machine+systems.+A+challenge+for+systems+analysis&rft.btitle=IFAC+Symposia+Series+-+Proceedings+of+a+Triennial+World+Congress&rft.genre=bookitem