@article{ Schiff_etal94,
  author = {Schiff, S.J. and Jerger, K. and Duong, D.H. and Change, T. and Spano,
	M.L. and Ditto, W.L},
  title = {Controlling chaos in the brain},
  journal = {Nature},
  year = {1994},
  volume = {370},
  pages = {615-620},
  en_number = {1.15:14}
}