@Article{SCI:But2008c,
  author =    "C.R. Butson and C.C. McIntyre",
  title =     "Current Steering to Control the Volume of Tissue
              Activated During Deep Brain Stimulation",
  journal =   "Brain Stimulation",
  volume =    "1",
  number =    "1",
  pages =     "7--15",
  year =      "2008",
  month =     "January",
  doi =       "10.1016/j.brs.2007.08.004",
  pmid =      "19142235",
  url =       "http://www.sci.utah.edu/publications/But2008c/Butson_BrainStim2008.pdf",
}