I'm 100% sure, because I remember the discussion on this forum if she was boycotting the NT like Spasojević and Đerisilo were at the time. I believe she was on the wide roster, but didn't actually get to play.
Anyway, these are the players the Serbian Volleyball Federation credits with the GP '11 bronze:
ANA LAZAREVIĆ, JOVANA BRAKOČEVIĆ, SANJA MALAGURSKI, NATAŠA KRSMANOVIĆ, TIJANA MALEŠEVIĆ, BRIŽITKA MOLNAR, ANA ANTONIJEVIĆ, JOVANA VESOVIĆ, MAJA OGNJENOVIĆ, JELENA NIKOLIĆ, NAĐA NINKOVIĆ, MILENA RAŠIĆ, SUZANA ĆEBIĆ, SILVIJA POPOVIĆ
So, the 14th player was Ana Lazarevic. She never once appeared on any of the official match reports in the final round, nor is she credited for it on her wiki entry. Thanks again. I'll edit the list (hopefully for the last time).