?url_ver=Z39.88-2004&rft_id=10.3390%2Fmath9202633&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Rahman%2C+M.A.&rft.aulast=Rahman&rft.aufirst=M.A.&rft.title=Mathematics&rft.date=2021&rft.issue=20&rft.volume=9&rft.issn=22277390&rft.atitle=Nature-inspired+metaheuristic+techniques+for+combinatorial+optimization+problems%3A+Overview+and+recent+advances&rft.genre=article