Using tracking data to measure the exposure to interpersonal contact: a tool to manage the impact of the Covid-19 quarantine in sport environments - Gonçalves, Bruno; Mendes, Romeu; Folgado, Hugo; Figueiredo, Pedro; Travassos, Bruno; Barros, Henrique; Campos-Fernandes, Adalberto; Beckert, Paulo; Brito, João (2020)