Connor Hoopes and Timothy T. Takahashi; "Developments in the Federal Regulation of Personal Air Vehicles", Arizona State University, 2023. (Retrieved 11 July 2023). Note: Hoopes & Takashaki remark both "PAVs ... are intended for individual personal usage, accommodating only one passenger. The larger eVTOLs ... are intended for two to five passengers" and, by contrast, "the larger PAVs, those carrying more than one passenger".
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Harry Kraemer (2003-12-01). "Highway in the sky". Aviationtoday.com. Retrieved 2011-04-25.