^Matt Buchanan 马特·布坎南(2008)Nikon D90 Official: First DSLR Ever With HD Video Recording 尼康D90:首款具有高清视频录制功用的数码单反相机 https://gizmodo.com/nikon-d90-official-first-dslr-ever-with-hd-video-recor-5042209
^PRNewswire 美通社(2020)GoPro Announces Fourth Quarter and Full Year 2019 Results GoPro公布颁发2019年第四时度和全年业绩 https://investor.gopro.com/press-releases/press-release-details/2020/GoPro-Announces-Fourth-Quarter-and-Full-Year-2019-Results/