?url_ver=Z39.88-2004&rft_id=10.1371%2Fjournal.pone.0272160&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=R.&rft.aulast=Ahmed&rft.au=Ahmed%2C+R.&rft.date=2023&rft.volume=18&rft.issue=2+Febr&rft.atitle=4E+analysis+of+a+two-stage+refrigeration+system+through+surrogate+models+based+on+response+surface+methods+and+hybrid+grey+wolf+optimizer&rft.title=PLoS+ONE&rft.genre=article