?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Yeganefard%2C+Sanaz&rft.aulast=Yeganefard&rft.aufirst=Sanaz&rft.date=September+2011&rft.title=Structuring+functional+requirements+of+control+systems+to+facilitate+refinement-based+formalisation+&rft.genre=proceeding