?url_ver=Z39.88-2004&rft_id=10.19026%2Frjaset.8.1201&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Besrour%2C+S.&rft.aulast=Besrour&rft.aufirst=S.&rft.title=Research+Journal+of+Applied+Sciences%2C+Engineering+and+Technology&rft.date=2014&rft.issue=19&rft.volume=8&rft.issn=20407459&rft.pages=2082-2091&rft.atitle=The+study+of+available+techniques+for+existing+requirements+engineering+challenges+based+on+literature+review+evidences&rft.genre=article