%0 Journal Article %T Blue straggler stars in Globular Clusters: chemical and kinematical properties %A Loredana Lovisi %A Alessio Mucciarelli %A Barbara Lanzoni %A Francesco R. Ferraro %A Emanuele Dalessandro %J Physics %D 2013 %I arXiv %X Blue Straggler stars are present in all the properly observed Globular Clusters. They mimic a rejuvenated stellar population and their existence has been a puzzle for many years. We performed an extensive spectroscopic survey of the surface abundances and the rotational velocities of Blue Straggler stars in different Globular Clusters, by using the high-resolution spectrograph FLAMES@VLT in the UVES+GIRAFFE combined mode. In this contribution we show our main results obtained for M4, {\omega} Centauri and M30. %U http://arxiv.org/abs/1301.3295v1