?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Hoang%2C+Anh+Quy&rft.aulast=Hoang&rft.aufirst=Anh+Quy&rft.date=2015&rft.issn=1859-3585&rft.atitle=Applying+APF+and+PSO+Algorithm+for+searching+task+of+Multi-robot+System&rft.title=VNU+Journal+of+Science&rft.genre=article