?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Nguyen%2C+Duy+P.&rft.aulast=Nguyen&rft.aufirst=Duy+P.&rft.date=4+August+2019&rft.title=High+Gain+High+Efficiency+Doherty+Amplifiers+with+Optimized+Driver+Stages&rft.genre=proceeding