?url_ver=Z39.88-2004&rft_id=10.1109%2FROMA46407.2018.8986710&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aufirst=M.K.A.A.&rft.aulast=Khan&rft.au=Khan%2C+M.K.A.A.&rft.date=2018&rft.title=PID+Controller+design+for+a+Magnetic+Levitation+system&rft.isbn=9781728103747&rft.genre=proceeding