Allen, Peter. „Calado finishes GP2 season with victory”, Paddock Scout, 2013. november 3.. [2016. március 7-i dátummal az eredetiből archiválva] (Hozzáférés: 2013. november 3.) „His rival Sam Bird came through to fourth from ninth on the grid to give Russian Time the teams' title at their first attempt.”
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Allen, Peter. „Calado finishes GP2 season with victory”, Paddock Scout, 2013. november 3.. [2016. március 7-i dátummal az eredetiből archiválva] (Hozzáférés: 2013. november 3.) „His rival Sam Bird came through to fourth from ninth on the grid to give Russian Time the teams' title at their first attempt.”