Plasmoids in Saturn's magnetotail - Hill,TW; Thomsen,MF; Henderson,MG; Tokar,RL; Coates,AJ; McAndrews,HJ; Lewis,GR; Mitchell,DG; Jackman,CM; Russell,CT; Dougherty,MK; Crary,FJ; et al. (JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 2008)