"LEFRANC Kevin" (in French). Encyclopedia Royal Excelsior Virton. 6 September 2009. Archived from the original on 24 August 2011. Retrieved 21 November 2011.
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"LEFRANC Kevin" (in French). Encyclopedia Royal Excelsior Virton. 6 September 2009. Archived from the original on 24 August 2011. Retrieved 21 November 2011.