Luna Vujovic advanced past Samira De Stefano in the ITF W75 Kursumlijska Banja 3 quarter-finals. The 17-year-old born July 24, 2009 and listed WTA 475 used momentum from her August 20 straight sets win over Rositsa Dencheva 2-0 to reach the semifinals. Samira De Stefano had entered as the higher-ra…