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Giry, <i>et al.<\/i>: \u201cLinear power amplifiers for sub-6GHz mobile applications: progress and trends,\u201d 2020 18th IEEE International New Circuits and Systems Conference (2020) 226 (DOI: 10.1109\/NEWCAS49341.2020.9159835).","DOI":"10.1109\/NEWCAS49341.2020.9159835"},{"key":"2","doi-asserted-by":"crossref","unstructured":"[2] A. Grebennikov, <i>et al.<\/i>: \u201cHigh-efficiency Doherty power amplifiers: historical aspect and modern trends,\u201d Proc. IEEE <b>100<\/b> (2012) 3190 (DOI: 10.1109\/JPROC.2012.2211091).","DOI":"10.1109\/JPROC.2012.2211091"},{"key":"3","doi-asserted-by":"crossref","unstructured":"[3] R. Pengelly, <i>et al.<\/i>: \u201cDoherty\u2019s legacy: a history of the Doherty power amplifier from 1936 to the present day,\u201d IEEE Microw. Mag. <b>17<\/b> (2016) 41 (DOI: 10.1109\/MMM.2015.2498081).","DOI":"10.1109\/MMM.2015.2498081"},{"key":"4","doi-asserted-by":"crossref","unstructured":"[4] W.H. 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