?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Gebremedhen%2C+H.S.&rft.aulast=Gebremedhen&rft.aufirst=H.S.&rft.title=ARPN+Journal+of+Engineering+and+Applied+Sciences&rft.date=2016&rft.issue=24&rft.volume=11&rft.issn=18196608&rft.atitle=A+literature+survey+on+challenges+in+stress+based+topology+optimization&rft.pages=14188-14194&rft.genre=article