Metcalf, Rupert; Nixon, Alan. Di Matteo seals move to Chelsea. The Independent (Independent Print Limited). 6 July 1996 [22 March 2013]. (原始内容存档于2014-01-22).
Metcalf, Rupert; Nixon, Alan. Di Matteo seals move to Chelsea. The Independent (Independent Print Limited). 6 July 1996 [22 March 2013]. (原始内容存档于2014-01-22).
Metcalf, Rupert; Nixon, Alan. Di Matteo seals move to Chelsea. The Independent (Independent Print Limited). 6 July 1996 [22 March 2013]. (原始内容存档于2014-01-22).
Metcalf, Rupert; Nixon, Alan. Di Matteo seals move to Chelsea. The Independent (Independent Print Limited). 6 July 1996 [22 March 2013]. (原始内容存档于2014-01-22).
Koren, Eirik; Elster, Kristian. Ronny Johnsen kan bli spiss. NRK. 1 April 2010 [22 March 2013]. (原始内容存档于2023-04-05) (挪威语).