Rosenberg, Luke; Sletten, Mark; Toporkov, Jakov: 'Focussing moving objects using the VSAR algorithm' (Radar, Sonar and Navigation, 2017), 'Novel Radar Techniques and Applications Volume 1: Real Aperture Array Radar, Imaging Radar, and Passive and Multistatic Radar', Chap. 11, pp. 489-516, DOI: 10.1049/SBRA512F_ch11
IET Digital Library, https://digital-library.theiet.org/;jsessionid=6gr7ar8aw7r1.x-iet-live-01content/books/10.1049/sbra512f_ch11