Manzi, Alessandro; Fiorini, Laura; Limosani, Raffaele; Dario, Paolo; Cavallo, Filippo: 'Two-person activity recognition using skeleton data', IET Computer Vision, 2018, 12, (1), p. 27-35, DOI: 10.1049/iet-cvi.2017.0118
IET Digital Library, https://digital-library.theiet.org/;jsessionid=mo30rncllomu.x-iet-live-01content/journals/10.1049/iet-cvi.2017.0118